平角

Used for down hand welding and flat fillet welding on general low - carbon steel structures.

适用于船体结构低碳钢和其他相应等级的普通低碳钢的平焊、平角焊。

At the same time convert the angle of the polygon at that vertex a straight angle.

同时把该顶点处多角形的角转换成平角。

The rotational angle of a ball around its rotational axis.

转轴角-----球旋转时转轴的水平角度。

Old men wear only boxer shorts in the sultry streets.

在闷热的街道上，老年男子会只穿着条平角短裤。

Objective: to study safe resection margin of laryngectomy according to the level of protein of gene expression.

目的：从基因蛋白水平角度研究喉癌手术安全切缘。