收缩期血压是血压读数的最高值，并且是心脏收缩时血液泵出力量的测量值。
Systolic blood pressure is the top number of a blood pressure reading and is a measurement of the force of blood pumped out when the heart muscle contracts.
最好是使用相同的轮胎压力计和泵当您检查您的轮胎，因为你可能会取决于轮胎压力计，你选择不同的读数。
It is best to use the same tire pressure gauge and pump when you check your tires, because you may get different readings depending upon the tire pressure gauge that you choose.
慢循环率将按预期压井泵速期待的循环压降给定读数。
It will give an indication of the circulating pressure drop to be expected at the anticipated killing pump speed.
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