延长 lengthen; extend; prolong; prolongate; elongation; extension; dwell; prolongation 延长有效期 prolong the period of validity; 条约延长十年。 the treaty has been prolonged for another ten years. 通过协议可以延长期限。 period may be extended upon expiration (through agreement).; 延长号 [音乐] pause; 延长线 extended [extension] line
长管蒸发器 long tube evaporator; long-tube evaporator; raising film evaporator
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例句与用法
Removing the extension tube shortens the spacing to allow any binocular viewer to reach focus without a barlow lens 除去延长管缩短间隔让任何的用两眼的观众到达没有一个巴罗镜的焦点。
The shortest possible tube length is 520 mm with the extension tube removed , while the standard tube length during visual observing is 845 mm 最短的可能长度用被移动的延长管是520毫米而标准的全长在目视观察期间是845毫米。