But because it now oil and chemical use screw compressor for flow and pressure from the shaft power, high demands, at present basically also rely on imports.
但由于目前石油和化工用螺杆式压缩机对流量、排出压力、轴功率等要求较高，目前基本上还依赖进口。
The system ensured the stable operation of oil-free screw compressor and was reliable enough to guarantee steady and continuous production, low chip breakage and energy consumption.
该系统保障了无油螺杆压缩机稳定运行，性能稳定，可保证生产的连续性，切片破碎率低，节约能耗。
Sales, including the oil, no oil screw and centrifugal compressor, all kinds of air compressor, vacuum pump.
销售包括微油、无油螺杆式及离心式空压机在内的各式空压机、真空泵。
The surface temperatures of grooves of an oil-flooded single screw compressor are measured with a slide-ring, and the surface temperatures on different working conditions arc given.
利用滑环装置测量了喷油单螺杆压缩机转子螺槽的表面温度，给出了各种不同工况下表面温度的数据。
The surface temperatures of grooves of an oil-flooded single screw compressor are measured with a slide-ring, and the surface temperatures on different working conditions arc given.
利用滑环装置测量了喷油单螺杆压缩机转子螺槽的表面温度，给出了各种不同工况下表面温度的数据。
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