名词
中文翻译：可变直径的射流器
同义词：
['variable diameter nozzle', 'variable diameter sprayer']
例句：
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1. The variable diameter ram is used to adjust the flow rate of the fluid.
可变直径射流器用于调整流体的流量。
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2. The variable diameter ram was designed to improve the accuracy of the measurements.
可变直径射流器被设计用来提高测量的准确性。
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3. The variable diameter ram can be adjusted to fit different sizes of pipes.
可变直径射流器可以调整以适应不同尺寸的管道。