名词
中文翻译：反压力缸
同义词：
['back pressure cylinder', 'counter-pressure cylinder']
例句：
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1. The new machine has a counter-pressure cylinder that can adjust the pressure automatically.
这台新机器有一个可以自动调节压力的反压力缸。
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2.In the oil field, counter-pressure cylinders are used to prevent the formation fluids from flowing back into the wellbore.
在油田中，反压力缸被用来防止地层流体回流到井筒。
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3. The engineer carefully inspected the counter-pressure cylinder before installing it in the factory.
工程师在将反压力缸安装到工厂之前仔细检查了它。