The hot chamber die casting is a traditional die casting method, and there are several things that must be paid attention during the installation and operation of the hot chamber die casting machines.
热室压铸机压铸是一种传统的压铸方法，在压铸生产中有一些值得注意之处。
About 1885, a process by which natural gas heats a roasting chamber and hot air is the only heating medium was developed, and this remains the best and most popular method of roasting coffee.
大约1885年，用天然气加热烘焙箱、以热空气作为唯一的热媒介的工艺就已经被开发了，这种工艺至今仍是最好最普及的咖啡烘焙法。
About 1885, a process by which natural gas heats a roasting chamber and hot air is the only heating medium was developed, and this remains the best and most popular method of roasting coffee.
大约1885年，用天然气加热烘焙箱、以热空气作为唯一的热媒介的工艺就已经被开发了，这种工艺至今仍是最好最普及的咖啡烘焙法。
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