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If and diver
If divers are scoring 8 or 9 on most dives, it may be a sign of their extreme skill, or it may be a sign that their dive list is not competitive, and they may lose the meet to a diver with higher DDs and lower scores.
If the diver pauses during his or her hurdle to ask for a change of dive, it will be declared a balk and the change of dive will not be permitted.
If the bezel could be turned the other way this could suggest to a diver that the elapsed time was shorter than the truth, thus giving a falsely low elapsed time reading and therefore an assumed falsely low air consumption reading and falsely high remaining air reading, all of which could be highly dangerous.
* If the rgulator free-flows and freezes, the diver should close it down and switch to the backup, and terminate the dive.
If the diver is over-weighted, the suit may contain additional air to offset the extra weight ; migration of this air, particularly to the legs when the diver is not upright, can cause the diver to " invert " to a legs-up position that makes venting the drysuit difficult ( see more on this problem, in the following section below ).
If there is more air in the dry suit than is needed to counteract " squeeze " on the undersuit, that excess air creates a " bubble " which moves to the highest point of the suit ; in an upright diver this is the shoulders.
If the diver is positively buoyant and rising, the buoyancy of the dry suit becomes uncontrollable after rising though a certain fraction of depth, and there is then an increased risk of a rapid ascent which grows more rapid, as the distance to the surface decrease.
If currents are not properly managed, they can cause serious problems for the diver.
If any one of the three light sources fail for one diver, the dive is called off and ended for all members of the dive team.
If a diver accidentally breaks off a stalactite from the ceiling or other speleothem formation, it will not reform as long as the cave is underwater so active cave conservation diving techniques are paramount.
If the diver persists, the shark will either retreat or launch a rapid open-mouthed attack, slashing with its upper teeth.
If the heater fails and a backup unit cannot be immediately brought online, a diver in the coldest conditions can die within minutes ; depending on decompression obligations, bringing the diver directly to the surface could prove equally deadly.
If the diver rises, by even the most minuscule amount, the pressure on the bubble will decrease, it will expand, it will displace more water, and the diver will become more positively buoyant, rising still more quickly.
If the fish is too large to hang on to, the diver can tie it off or release it, only losing his spear and rope.
* If the diver's exposure suit is made of a compressible gas-filled material such as foamed Neoprene, the volume of the material will change ( Boyle's Law ) as the pressure changes when the diver descends and ascends.
If the diver needs to adjust trim for greater comfort and efficiency while working, trim weights of various types may be added to the harness.
If the weights have a method of quick release, they can provide a useful rescue mechanism: they can be dropped in an emergency to provide instant increase in buoyancy which may return the diver to the surface.
If by force of habit the diver does the same with a rebreather that has a plain mouthpiece instead of a full-face mask, that water will get into the breathing circuit.
; W-Weights: If a weight belt is worn, check that the belt is secure, and the strap arranged so that it can be released with the right hand of the diver.

If and becomes
If he becomes chancellor, Dr. Erhart would make few changes.
If we grasp this orientation as a key, our national conduct in all of the events here mentioned becomes intelligible.
If the coating becomes still thicker, a peeling type failure finally can occur.
If we neglect higher than first order terms in the fluctuations, the mass balance equation becomes
If the balance factor becomes 0 then the height of the subtree has decreased by one and the retracing needs to continue.
If the balance factor becomes − 2 or + 2 then the subtree is unbalanced and needs to be rotated to fix it.
If the object point O is infinitely distant, u1 and u2 are to be replaced by h1 and h2, the perpendicular heights of incidence ; the sine condition then becomes sin u ' 1 / h1 = sin u ' 2 / h2.
If the batter gets a base hit, which would have scored the runner anyway, the run now becomes earned.
* If G is a locally compact Hausdorff topological group and μ its Haar measure, then the Banach space L < sup > 1 </ sup >( G ) of all μ-integrable functions on G becomes a Banach algebra under the convolution xy ( g ) = ∫ x ( h ) y ( h < sup >− 1 </ sup > g ) dμ ( h ) for x, y in L < sup > 1 </ sup >( G ).
If we allow only quantifiers, it becomes the Co-NP-complete tautology problem.
If a suitably sized quantum computer capable of running Grover's algorithm reliably becomes available, it would reduce a 128-bit key down to 64-bit security, roughly a DES equivalent.
If a non-working point number placed, bought or laid becomes the new point as the result of a come-out, the bet is usually refunded, or can be moved to another number for free.
If is any unit vector, the projection of the curl of F onto is defined to be the limiting value of a closed line integral in a plane orthogonal to as the path used in the integral becomes infinitesimally close to the point, divided by the area enclosed.
If the core becomes sufficiently dense, electron degeneracy pressure will play a significant part in stabilizing it against gravitational collapse.
If the column load is gradually increased, a condition is reached in which the straight form of equilibrium becomes so-called neutral equilibrium, and a small lateral force will produce a deflection that does not disappear and the column remains in this slightly bent form when the lateral force is removed.
If the 15 minutes of a quarter expire while the ball is live, the quarter is extended until the ball becomes dead.
If the situation worsens it is possible that the defenses cease to function altogether and the individual becomes aware of the incongruence of their situation.
If m is greater than 1, the figure becomes larger ; if m is between 0 and 1, it becomes smaller.
If S is an arbitrary set, then the set S < sup > N </ sup > of all sequences in S becomes a complete metric space if we define the distance between the sequences ( x < sub > n </ sub >) and ( y < sub > n </ sub >) to be, where N is the smallest index for which x < sub > N </ sub > is distinct from y < sub > N </ sub >, or 0 if there is no such index.
If these two features of the language coincide too frequently, they overemphasize each other and the hexameter becomes sing-songy.
If y is a point where the vector field v ( y ) ≠ 0, then there is a change of coordinates for a region around y where the vector field becomes a series of parallel vectors of the same magnitude.
If one alters a Euclidean space so that its inner product becomes negative in one or more directions, then the result is a pseudo-Euclidean space.
If I told you my son's age, then there would no longer be two unknowns ( variables ), and the problem becomes a linear equation with just one variable, that can be solved as described above.
If we allow to incorporate the algebraic sign, this becomes a sum and implies that there is a function of state which is conserved over a complete cycle.

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