The head is the part of an animal that usually comprises the brain, eyes, ears, nose and mouth.

The supporting structure of a roof usually comprises beams that are long and of strong, fairly rigid material such as timber, and since the mid-19th century, cast iron or steel.

The Royal Botanic Gardens, Kew, usually referred to as Kew Gardens, comprises 121 hectares of gardens and botanical glasshouses between Richmond and Kew in southwest London, England.

The king is also the prime minister, and presides over the Council of Ministers ( Majlis al-Wuzarāʾ ), which comprises the first and second deputy prime ministers ( usually the first and second in line to the throne respectively ) and 23 ministers with portfolio and five ministers of state.

A turbopump is a propellant pump that comprises basically two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together.

This can be less than earth's atmosphere, as there is usually no need for the spacesuit to carry nitrogen ( which comprises about 78 % of earth's atmosphere and is not used by the body ).

An inductively coupled transponder comprises an electronic data carrying device, usually a single microchip, and a large coil that functions as an antenna.

A metropolitan area usually comprises multiple jurisdictions and municipalities: neighborhoods, townships, cities, exurbs, counties, and even states.

It comprises a mixture of active substances and excipients, usually in powder form, pressed or compacted from a powder into a solid dose.

It comprises the kinds of technology that are distinctly military in nature and not civilian in application, usually because they are impractical in civilian application, have no legal civilian usage, or are dangerous to use without appropriate military training.

The weekend meeting, usually held on Sunday, comprises a 30-minute public talk by a congregation elder or ministerial servant and a one-hour question-and-answer study of a Bible-based article from The Watchtower magazine, with questions prepared by the Watch Tower Society and the answers provided in the magazine.

The town hosts an annual Fourth of July celebration which usually comprises a pancake breakfast, a parade, a subsequent car show, live music in the park, and fireworks at dusk.

The zì is mostly disyllabic ( comprises two characters ) and is usually based on the meaning of the míng or given name.

The Karnak Temple Complex — usually called Karnak ()— comprises a vast mix of decayed temples, chapels, pylons, and other buildings.

A contemporary Carnatic music concert ( called a kutcheri ) usually lasts about three hours, and comprises a number of varied compositions.

The score forms part of the film's soundtrack, which also usually includes dialogue and sound effects, and comprises a number of orchestral, instrumental or choral pieces called cues which are timed to begin and end at specific points during the film in order to enhance the dramatic narrative and the emotional impact of the scene in question.

A means of self-governance usually comprises at least the following:

A typical khyal performance uses two songs — the bada khyal or great khyal, in slow tempo ( vilambit laya ), comprises most of the performance, while the chhota khyal ( small khyal ), in fast tempo ( drut laya ), is used as a finale and is usually in the same raga but a different taal.

A personal name is a proper name identifying an individual person, and today usually comprises a given name bestowed at birth or at a young age plus a surname.

A fellfield or fell field comprises the environment of a slope, usually alpine or tundra, where the dynamics of frost ( freeze and thaw cycles ) and of wind give rise to characteristic plant forms in scree interstices.

The pump console usually comprises several rotating motor-driven pumps that peristaltically " massage " tubing.

Rescue comprises responsive operations that usually involve the saving of life, or prevention of injury during an incident or dangerous situation.

The lamp comprises a hermetically sealed glass tube, which is filled with a noble gas, usually xenon, and electrodes to carry electrical current to the gas.

Each unit comprises a set number of outcomes ( usually two or three ); an outcome describes the knowledge and skills that a student should demonstrate by the time the student has completed the unit.

It usually comprises three to six aircraft, with their aircrews and ground staff ; or, in the case of a non-flying ground flight, no aircraft and a roughly equivalent number of support personnel.

Even with a release aid mechanism some of this effect will usually be experienced, since the string always accelerates faster than the retaining part of the mechanism.

( Rhythm section instruments usually include guitars, bass guitars, string basses, piano and other keyboard instruments, and drums.

* Classical fingerboards are normally flat and without inlaid fret markers, or just have dot inlays on the side of the neck — steel string fingerboards usually have a slight radius and inlays.

Frets are the metal strips ( usually nickel alloy or stainless steel ) embedded along the fingerboard and placed at points that divide the length of string mathematically.

A production rule in is formalized mathematically as a pair, where is a non-terminal and is a string of variables and nonterminals ; rather than using ordered pair notation, production rules are usually written using an arrow operator with as its left hand side and as its right hand side:

Primarily used for hunting wildfowl, these usually have a double string with a pouch between the strings to hold the projectile.

They are usually ROMplers, to give a wide variety of realistic instrument and other sounds such as drums, string instruments and wind instruments along with popular keyboard instrument sounds such as electric pianos and organs.

The double bass, also called the string bass, upright bass, bass fiddle, bass violin, doghouse bass, contrabass, bass viol, stand-up bass or bull fiddle, is the largest and lowest-pitched bowed string instrument in the modern symphony orchestra, with strings usually tuned to E1, A1, D2 and G2 ( see standard tuning ).

All the parts of a double bass are glued together, except the soundpost, bridge and tailpiece, which are held in place by string tension, although the soundpost usually remains in place when the instrument's strings are loosened or removed.

To accommodate the additional string, the fingerboard is usually slightly wider, and the top slightly thicker to handle the increased tension.

The guitar is a plucked string instrument, usually played with fingers or a pick.

A crystal is located under each string, usually in the saddle.

The body is hollow and when a taut string is plucked, the body resonates, projecting sound both inward towards the harp player through a series of usually oval openings ( whose principal purpose is to allow access to the strings and only secondarily to enhance resonance ) and, much more importantly and powerfully, outward through the flexible and taut-strung sounding board.

Lever harps use a shortening lever ( usually shaped like a capital letter L ) on the neck next to each individual string which is to be activated ( i. e., turned ) manually to shorten the string and raise the tone a half step.

European harps in medieval and Renaissance times usually had a bray pin fitted to make a buzzing sound when a string was plucked.

Pitch pipes are also sold for string players, such as violinists and guitarists ; these pitch pipes usually provide the notes corresponding to the open strings.

A few additional partial frets of wood are usually glued to the body of the instrument, to allow stopping the highest-pitched courses up to a full octave higher than the open string, though these are regarded anachronistic by some ( although John Dowland and Thomas Robinson describe the practice of gluing wooden frets onto the soundboard ).

The lute's strings are arranged in courses, of two strings each, though the highest-pitched course usually consists of only a single string, called the chanterelle.

Other tunings exist, including " cross-tunings ," in which the usually doubled string runs are tuned to different pitches.

A string quartet usually consists of two violins, a viola and a cello.

Thus, a piano quintet is usually a string quartet plus a piano.

This serves to bias the two output transistors slightly into conduction reducing crossover distortion ( in some discrete component amplifiers, this function is usually achieved with a string of two silicon diodes ).

Along with Punch and Judy, the cast of characters usually includes their baby, a hungry crocodile, a clown, an officious policeman, and a prop string of sausages.