Direct drive fans are available for many applications, and can reduce maintenance needs.
直接驱动风机得到了广泛应用并可减少维修需要。
Commodities cream coated with the effect of maintenance, and direct use is the same.
涂敷乳霜与保养品的后果，和直接服用是雷同的。
Magnetic, direct d. c. drive built for continuous, maintenance free operation.
直接磁力驱动技术，免维护，长期连续运转。
The picture direct-viewing, the operation simple, the maintenance is convenient.
画面直观、操作简单、维护方便。
The picture direct-viewing, the operation simple, the maintenance is convenient.
画面直观、操作简单、维护方便。
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