The booster training had an effect on the speed-of-processing group but not on the other two groups.
增强训练队运算速度组有效，而在其他两组没有效果。
One of the 4 items decided at the vacuum trade meeting in 1974 was to raise the pumping speed of oil booster pump following the raise of sucking pressure.
1974年真空行业会议确定四大攻关项目之一是油增压泵对应高吸入压强提高抽速。
A super speed tester for booster impellers was presented.
提供了一种模块式增压器叶轮立式超速试验机。
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