differential gauge meaning in English

差示流速规；差式流速计；差动压力计
差压计
微分计

After memory is set , disconnect differential gauge
记忆设置后，断开压差表。
Note : it is important that the differential gauge needle drops slowly
注意：重要的是差压计指针缓慢下降。
Industrial pressure gauges - metallic pressure gauge indicators - differential gauges
工业压力计.金属指示压力计.差压计
Connect , vent and prepare the differential gauge . refer to instructions furnished with the gauge
连接、排气和预备压差表。参阅压差表附带的使用说明。
Slowly loosen hose connection at tc # 3 until differential gauge rises to about 2 psi , then tighten
慢慢松开连接在测试旋塞3号上的软管直到压差表上升到大约2psi ，然后紧固。

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