It will be significant to the drawing of mechanical patterns if we design a kind of practical, convenient drawing method of a section line which can be easily mastered and operated.
设计一种方便、实用且易于掌握和操作的剖面线绘制方法，对机械图样的绘制具有重要意义。
It is very simple, practical, convenient and reliable and enables broadcasting automatically and program making digitally.
该系统简单、实用、方便、可靠，为实现广播节目制作数码化和播放自动化提供了可能。
Features: waterproof, anti-skid, environmental, practical, convenient and quick installation.
特点：防水、防滑、环保、实用，安装方便快捷。
Therefore, it is necessary to develop a practical, convenient coal mine power supply design software, to improve the current mine drawbacks.
因此，有必要开发出一套实用、便捷的矿井供电设计软件以改善当前煤矿供电设计软件存在的弊端。
This paper presents the method for making teaching videotape by using computer or game player with video recorder. The method is simple, practical, convenient and flexible.
本文介绍用微机或游戏学习机配合录像机制作教学录像带的方法，该法简单实用，方便灵活。
This paper presents the method for making teaching videotape by using computer or game player with video recorder. The method is simple, practical, convenient and flexible.
本文介绍用微机或游戏学习机配合录像机制作教学录像带的方法，该法简单实用，方便灵活。
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