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1 ?双扭螺钻 ... 铰炼双壳型钻油船 hinged catamaran type drilling ring 双钻双质 索扣 SOKO 双扭螺钻,麻花钻 double worm screw ...
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Therefore, double screw compressor and worm compressor compared, in the same speed of the units inside less number of exhaust air ripple, big air flow noise. 因此，双螺杆压缩机与蜗杆压缩机相比，在相同转速下单位内排气次数少，气流脉动大，气流噪声大。 - 2
The world does not have never worn machine, no matter double screw compressor or worm compressor, in a few years, all needs to carry out the maintenance of the host. 世界上没有永不磨损的机器，无论双螺杆压缩机还是蜗杆压缩机，在若干年后，均需对主机进行维修保养。
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