The test results show that hot- air sintering can increase sinter rate and tumbler strength, but decrease productivity.
试验结果表明，热风烧结可以提高钒钛磁铁精矿烧结矿的成品率和转鼓强度，但利用系数降低；
Design central coal feeding swirl burner and carry on laboratory test while being cool, on-the-spot air power field test and test while being hot.
设计了中心给粉旋流煤粉燃烧器，并进行了实验室冷态试验、现场空气动力场试验和热态试验。
The interior paint is high high-performance hot glue , which may be collocated to the spiracle for air charging test .
内涂高性能热熔胶，可配用于充气检测的气门；
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