With the cooperative control of drawing temperature and feed speed, the final hole structure can be effectively controlled by tuning the applied pressure.

在温度和送料速度的协调控制下，通过调节气压参数可有效控制气孔结构。

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The invention has the advantages of continuous running screw, small feed liquid pressure fluctuation and simple and convenient control method.

本发明具有螺杆连续运转、料液压力波动小，控制方 法简便的优点。

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The Siemens PG scope of supply encompasses the low-pressure turbines, the high-pressure feed heaters, the flash tanks, and an SPPA-T2000 instrumentation and control system.

西门子发电集团的服务范围包括低压涡轮，高压给水加热器，扩容器和SPPA - T2000仪器和控制系统。

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