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两种系统都使用弹簧或顶针相对于其配对体的不稳定性来形成偏置效果.
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The paper deals with the theoretical calculation of reciprocating seal for three plunger pump.
本文叙述了对三柱塞泵往复密封的理论计算.
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Fluid end is forged of quality steel and fabricated by machining center with various plunger sizes.
液力端采用优质合金钢锻造,由加工中心整体精密加工而成,可配置多种柱塞尺寸.
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Finding an old edition of Hamlet, he plunked down two yuan for it.
他见到一部老版本的<哈姆雷特>, 付了两元把它买下来.
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I watched them go and plunked down on one of the small metal chairs.
我目送他们离去,然后一屁股坐在其中一把金属小椅子上。
《柯林斯高阶英汉双解学习词典》