“选点”造句

观测开始之前的一项主要工作是认真选点.
Careful reconnaissance is essential before observations begin.

论述了用支撑柱加固无梁板的选点原则.
The principle for choosing supporting points for strengthening flat - slab Was discussed.

凡是由几个任意选点确定的球面都是同心面.
The spherical surfaces defined by several arbitrarily chosen points are all concentric.

• #选点