A differential pressure gauge is recommended for test no. 1 rather than a manometer for the following reasons: It utilizes minimum time to perform the test.
对于检测1，建议采用差压表，而不要采用流体压力表，理由在于差压表进行检测的时间最短。
A differential pressure gauge is recommended for test no. 1 rather than a manometer for the following reasons: It utilizes minimum time to perform the test.
对于检测1，建议采用差压表，而不要采用流体压力表，理由在于差压表进行检测的时间最短。
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