The application of a pressure difference across an injector does not cause an immediate velocity response of the liquid propellant. 经过喷注器的压降发生变化时并不马上引起液体推进剂速度变化。
The correction of an excessive velocity variation is not as serious a problem as the correction of excessive angular variation. 对速度变化过大时的修正问题不象对偏角变化过大时的修正那样重要。
