Dual fireproof oil reservoirs should be designed, and the oil inlet height should not be lower than that of the water outlet to siphon oil in and drain water off.
防火油池应进行双池设计,两池中进油口和出水口不应同高或进口低于出口,这样才能形成虹吸排水贮油现象;
Scientists do not know why the rock can be separated easily into threads, but they have found thousands of USES for this fireproof material, of the called the "cloth of stone".
科学家们不知道为什么矿石可以轻易地分解成丝,但他们为这种名为“石棉”的防火材料找到了数以千计的用途。
Fireproof concrete not only can be taken the place of slag iron, but also the cost is lower and use life is longer.
用耐火混凝土挡渣墙可以代替挡渣铁,且费用低,使用寿命长。
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