water-entry cavity 入水空泡
The initial cavity, ballistic trajectory and velocity attenuation of the sphere pellets are similar at different water-entry angles and initial velocities.
在一定的入水角与速度范围内，球形弹丸入水初期弹道的空泡特性、弹道轨迹以及速度衰减规律具有一定的相似性。
It comprises the pressure boosting structure, oil entry, compression cavity and oil exhaust channel.
该泵包括增压机构，吸油油路，压缩腔，排油油路。
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