模数2基准标准齿轮的研制。

Development of normal master gear with modulus 2.

youdao

对于相啮齿轮端面齿廓相互关系的分析表明，目前使用的几种基准齿形，当螺旋角传动比都比较大时，存在齿形干涉的危险。

Then, it is indicated that the gearing used presently, while its helix Angle and ratio are both big enough, is in danger of interference.

youdao

compressors 齿轮箱为基准机，进行底座调整时以齿轮箱水平剖分面、箱体机加工基准面或 底座支承为基准，同时兼顾压缩机和电动机侧水平仪。

Gearboxes shall be taken as the standard unit. To adjust bottom base by referring to horizontal subdivision section of gear box, box body processing datum plane or support of bottom base;

youdao