广州亿圣电子有限公司专业生产电子钟、电波钟、投影钟、气象钟、报时钟、礼品钟。
GUANGZHOU ESENS ELECTRONIC co., LTD. is a manufacturer of LCD clocks, radio controlled clocks, projection clocks and weather station clocks etc.
在IBM—PC计算机上，得到轴测投影图仅需一分钟左右的时间。
It is necessary to take only about one minute to get projection view on IBM-PC computer.
若使用投影片，切记，一般规则如下：一张投影片不超过一分钟。每张投影片只陈述一个概念。投影片上的字能少就少。
If you show PowerPoint slides, remember that the general rule of thumb is no more than one slide a minute, one idea per slide and as few words as possible.
陈述不要超过10分钟，也没有必要用投影片或幻灯片。
口头报告长度为10分钟，可用电子式(用个人计算机投影机)或用透明投影片的方式呈现。
The presentation should be 10 minutes in length, and may be presented either electronically (using the PC projector) or on overhead transparencies.
口头报告长度为10分钟，可用电子式(用个人计算机投影机)或用透明投影片的方式呈现。
The presentation should be 10 minutes in length, and may be presented either electronically (using the PC projector) or on overhead transparencies.
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