be in mesh meaning in English

齿轮互相啮合

Be in mesh
齿轮互相啮合
When none of the sliding gears is in mesh with its countershaft gear , the gears are said to be in “ neutral
如果没有变速齿轮组与副传动轴上的齿轮啮合，这时，就叫做空挡。
The pump gears with large module and less number of teeth are adopted by the high viscidity gear pump . when they are in mesh , meshing interference happens . in order to avoid interference of flank , tooth profile is modified
高粘度齿轮泵中的泵齿轮通常模数大，齿数少，它们啮合时常发生干涉，为了消除啮合干涉，需对泵齿轮进行修形。