The distance between the main parallel shafts.
主要平行轴之间的距离。
A spur pair can be used to connect parallel shafts only.
对一个刺激可以用来连接平行轴而已。
A pair of spur gears for mounting on parallel shafts are the most common type of gears, which have straight teeth.
安装在两根平行轴上的直齿轮最常见的齿轮，这种齿轮带直齿。
The paper reviews the design and construction of the long inclined shafts, the deep vertical shaft, the parallel adit and the access adit for the tunnel.
文章介绍了越岭隧道的长斜井、深竖井、平导、横洞的设计和施工情况。
The rotating shafts of three t type joint modules are parallel to each other and are mutually perpendicular to the rotating shafts of the I type joint modules at both ends.
三个T型关节模块的转轴互相平行，并与两端的I型关节模块的转轴互相垂直。
The rotating shafts of three t type joint modules are parallel to each other and are mutually perpendicular to the rotating shafts of the I type joint modules at both ends.
三个T型关节模块的转轴互相平行，并与两端的I型关节模块的转轴互相垂直。
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