impellers
n.
推进者，叶轮( impeller的名词复数 );
例句:
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The impellers are kept in their proper relationship to each other by spur gear.
液轮之间借助于正齿轮保持彼此正常的关系.
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Mainly by the impellers, pump body and pump cover composition.
主要由叶轮 、 泵体和泵盖组成.
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Welding is one of the important technologies in impellers " artifactitious . "
焊接是 叶轮 加工的重要工艺之一.