它是用来测量罐内油面高低和调取油样的专门附件。每个油罐顶上设置一个，大都设在罐梯平台附近。
... instrumentation plate 仪表板 instrumentation port 测量孔 instrumentation port column 测量孔竖管 ...
基于12个网页-相关网页
炉墙上设有人孔门、观察孔和测量孔。
Manhole, observation hole and measure hole are set on the wall.
提出水平液面式孔内电视系统测量孔斜的误差因素。
This paper discusses the factors affecting hole inclination measurement with horizontal liquid surface bore hole TV system.
试飞结果表明，机翼蒙皮直接改装测量孔和测压带方法均能有效测量机翼表面压力分布。
The flight test results show that the Stripe-A-Tube method is as more effective as measurement that transform hole of static pressure on wing surface.
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