Be sure that valve is fully open. Apply heat to tube first. Transfer as much heat as possible through tube into valve. Avoid prolonged heating of valve itself.
要确保阀门处于开启状态。先对管道加热。尽可能多的将热从管道传递到阀门。避免延长阀门本身的加热时间。
Microwave heating method was used to reduce coal-containing chromite fines, scarce chromite resources can be fully used, technical process of ferrochrome smelting is simplified.
利用微波加热的方法来还原含煤铬铁矿粉，稀缺的铬铁矿资源可以得到充分利用。
The facial tissue and single-face corrugated paper can fully glued when in motion to avoid slip, which can solve the problem of worse strength without heating device;
运动时使面纸与单面瓦楞纸在 滚面上充分粘合，而不产生滑差，解决原有技术中纸板强度差的现象无需加 热装置；
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