This device is characterized by its small size, light weight, high efficiency and low cost.
这种器件的特点是体积小，重量轻，效率高，成本低。
The current reel silk drying device results in low heat efficiency but high heat loss.
缫丝厂现行小烘丝装置热效率低，热量损耗大。
Transmission device compact structure, high transmission efficiency, low noise.
⑹传动装置结构紧凑，传动效率高，噪声低；
The wind power generation device has simple structure and high energy conversion efficiency.
其结构构成简单，能源转化效率高。
The device has the advantages of high efficiency and low cost.
具有高效、成本低廉的优点。
The device has the advantages of high efficiency and low cost.
具有高效、成本低廉的优点。
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