Flush and drain system and install orifice plates.
冲洗并放净管道系统，然后安装孔板。
It's no coincidence that orifice plates are still the most popular flow technology.
这不是偶然的孔板仍然是最流行的流技术。
They are built with cast iron flanges, gaskets and orifice plates (either mild steel or stainless).
计量孔板由铸铁法兰，密封垫，孔板（铸铁或不锈钢）组成。
The results concerning fluctuating loads on orifice plates and diffusion chamber walls are given as well.
对孔板和扩散室管壁脉动荷载的试验研究成果也作了简要介绍。
In these cases orifice plates or other differential pressure producing elements with differential pressure transmitters shall be considered.
在这种情况下，应使用流量孔板或配有差压变送器的其它差压元件。
Orifice plates are the second choice for general duty flow measurement where vortex meters or other types of meters are not suitable or where redundant measurement is required.
在涡流表或其它类型的仪表不适合的普通用途的流量测量，或要求冗余测量的地方，孔板是第二选择。
The linearization apparatus designed by this method is in common use. It can be used in thermocouple and resistance thermometers as well as flowmeters by means of orifice plates.
用该方法设计的线性化器具有一定的通用性，可以构成热电偶、热电阻温度计以及孔板流量计。
To solve the problem of pipes vibration of large-sized compressor in ammonia plant, orifice plates are installed after thorough analysis of the causes of vibration, effectively solved the problem.
针对合成氨系统的大型压缩机组管系振动问题，深入分析了原因后，采取在管道中加装节流孔板的措施，使管系振动得到了有效控制。
The results show that the flow coefficients of the orifice-plates with a rectifier are more stable and have less fluctuation than those without a rectifier.
结果是：有整流器时的孔板流量系数均比无整流器时的孔板流量系数稳定且波动小。
The results show that the flow coefficients of the orifice-plates with a rectifier are more stable and have less fluctuation than those without a rectifier.
结果是：有整流器时的孔板流量系数均比无整流器时的孔板流量系数稳定且波动小。
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