这种器件的特点是体积小，重量轻，效率高，成本低。
This device is characterized by its small size, light weight, high efficiency and low cost.
具有效率高、成本低的优点。
It has the features of high efficient and low advantage in cost.
它具有结构简单、成本低、运输距离长、效率高的优点。
It is simple in structure, low cost, long distance transport, high efficiency advantages.
本发明的表达方法效率高、成本低，应用前景广阔。
The expressing method of the invention has high efficiency, low cost and wide application prospect.
它具有效率高、安全卫生、机械化程度高、成本低的优点。
Its advantages are high efficiency and safety, low cost and high mechanization level.
巧妙的构思、简单的结构，更简易的操作，效率高，成本低。
Clever idea, simple structure, easier operation, high efficiency and low cost.
使用寿命长，运行成本低，净化效率高，操作简单，更符合环保节能减排的理念；
Long life operation, low cost , high efficiency , easy use can meet the friendly environmental rules;
因此，需研制结构简单、成本低、效率高的水压自动增压阀。
Structure design and application of hydraulic automatic pressure-increasing valve;
因此，需研制结构简单、成本低、效率高的水压自动增压阀。
Structure design and application of hydraulic automatic pressure-increasing valve;
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