[机] 基线

basic line的用法和样例：

例句

The base line can be set out as a single or double chain.基线可作为一条单链系或双链系。
Dr Beavan has started projects to develop long-base line tiltmeters with earthquake prediction in mind.比花恩博士考虑到地震预报，开始发展长基线倾斜仪。
He drew a straight line on the paper.他在纸上画了一条直线。
But the bottom line seems clear.但其底线应该是清楚的。

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