一条线与另一条线相交成直角。
轴向电子对与三个相邻的电子对相交成直角。
An axial electron pair meets at right angles with 3 neighboring pairs.
在两条基线相交成直角的情况下,如果两条基线长度相等,则测最精度与基线的方位角无关;
When one baseline is kept to be perpendicular to another, if their lengths are equal, the accuracy does not vary with their azimuths;
一条线与另一条线成直角相交。
两线成直角相交。
两线成直角相交。
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