The rational low vacuum circulating water heating can improve the hot economy of thermal power plant .
合理的低真空循环水供热可以提高火电厂热经济性。
It indicates that the sixth harmonic generation in high vacuum is more preferable than that in low vacuum.
实验结果表明高真空状态对于六倍频相干光的产生比在低真空状态下更为有利。
The system's measuring range can be automatically switched from low vacuum to high vacuum, and it has a wide measuring range.
本系统具有从低真空到高真空，气压测量范围宽、量程自动切换功能，并能实现对真空度的实时控制。
The washing dirt suction device can be used to clean the floors, trains and motor cars, and used as a low vacuum suction cleaner.
本冲洗吸污器不仅可清洗地面、火车、汽车，还可作低真空吸尘器。
This paper presents a new method in which the coating layer is absorbed by low vacuum for determining the permeability of coating used in casting.
提出了用负压吸附涂料层的方式测试涂料透气性的新方法，并推导出了在该方法下计算涂料透气性的数学表达式。
The way of supplying heat with low vacuum of small-middle steam turbine can save energy sources, but it will have effect on safety of steam turbine itself.
中小型汽轮机低真空供热可以节约能源，但对汽轮机本身的安全性会产生一定的影响。
The ferroelectric material is a novel cathode material, which is characterized by its low vacuum requirement, convenient fabrication, low work function and fast reactive rate.
铁电材料作为一种新型的阴极材料，具有真空要求低、制作简单、功函数低、响应速度快等特点。
Pyrolysis experiments of waste printed circuit boards(WPCBs) were carried out by means of thermogravimetric analysis(TG) and a bench-scale fixed-bed pyrolysis reactor under low vacuum.
采用热重分析仪和固定床热解反应器对废旧电路板进行了低真空条件下的热分解实验。
It is shown that, for the refining of extra-low oxygen steel under low vacuum, blowing argon through porous plug into molten steel can effectively remove oxide inclusions from molten steel.
结果表明，在真空感应熔炼过程中，通过透气砖向熔池吹氩，可以实现在较低的真空度下熔炼超低氧钢，以及有效去除钢中的氧化物夹杂物颗粒。
Low vacuum in condenser has always been paid attention to during the course of units' operation in power station.
凝汽器真空偏低一直是电厂机组运行中人们普遍关注的问题。
Low vacuum in condenser has always been paid attention to during the course of units' operation in power station.
凝汽器真空偏低一直是电厂机组运行中人们普遍关注的问题。
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