名词
中文翻译：采样阀
同义词：
['sample valve', 'sampling device']
例句：
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1. The sampling valve is used tocontrol the flow of gases in apipeline.
采样阀用于控制管道中气体的流动。
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2. The engineer carefully inspected the samplingvalve before installing it.
工程师在安装之前仔细检查了采样阀。
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3. The samplingvalve was designed to preventcontamination during the samplingprocess.
采样阀被设计成在采样过程中防止污染。