In the first place, television is not only a convenient source of entertainment, but also a comparatively cheap one.
首先，电视不仅是一种方便的娱乐来源，而且相对较便宜。
The paper introduces a kind of wireless remote control system for crane controlling. The system with simple circuit and convenient manipulation has comparatively high application value.
介绍一种用于控制桥式起重机的无线遥控系统，整个系统电路简单、操作方便，具有较高的应用价值。
The utility model has the advantages of simple structure, low cost and convenient operation. The multi-functional dibbler for agriculture is a comparatively ideal agricultural small-size mechanical.
该点播器结构简单，制造成本低廉，使用方便，是一种比较理想的农用小型机械。
The utility model has the advantages of simple structure, low cost and convenient operation. The multi-functional dibbler for agriculture is a comparatively ideal agricultural small-size mechanical.
该点播器结构简单，制造成本低廉，使用方便，是一种比较理想的农用小型机械。
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