The poorer the economic benefit of enterprise, the fast the speed of the increase of enterprise benefit caused by the reduction of variable cost of the product and the increase of unit selling price of the product owing to technical progress. 当企业经济效益越差时,技术进步使产品的变动成本降低或使产生的单位售价提高而带来企业收益提高的速度越快;
It is the first time in China to set the speed increase gears form in the new compressor and to adopt several new techniques including the condenser with oil-separator built-in, jet exhauster and electrical expansion valve used to supply liquid for the flooded evaporator in the unit. 本压缩机在国内首次采用了带增速齿轮的形式,冷水机组在国内内首次采用了内置油分冷凝器、引射器和电子膨胀阀对满液式蒸发器供液等新技术。