In this paper calculating method of lead angle of helical gear by measuring span length of length bar and base tangent length is put forward and lead angle calculating formula is deducel.

分析齿轮主要参数，提出用测量跨棒（）和公法线长度计算斜齿圆柱齿轮螺旋角的测绘方法，并推导出螺旋角的计算公式。

youdao

In the breakdown view, the length of the transaction bar denotes the response time for every transaction.

在细分视图中，事务栏的长度表示每个事务的响应时间。

youdao

For bar type plots, the data is the length of the bar, and the choice between column or bar type determines the orientation.

对于条形图，数据是条的长度，柱形图和条形图之间的选择决定条的方向。

youdao

Two control lines, generally 60 to 90 feet long, lead from the sides of the kite down to a padded bar about twice the length of a water-ski towrope handle.

FORBES: Hook In and Hold On

He has won at every stage, maintaining that his inability to walk the entire length of a golf course should not bar him from professional competition.

ECONOMIST: Fore!

On one hand, the length was essentially the same as each of our steps, enabling us to use the bar itself to easily vacuum the stairway.

ENGADGET: Dyson DC23 Turbinehead impressions Hands-on