The circumference of a seeding wheel is provided with an axialgroove, and the inner part of the axialgroove is provided with a slide block whose axial position can be adjusted.
播种轮的圆周上设有轴向槽，轴向槽里装有可调整其轴向位置的滑动块；
2
The results of calculation indicates that the static axial stiffness of fluid film in double spiral groove face seal is improved due to the pressure loss through feeding holes.
计算结果表明， 供液小孔所产生的压力损失提高了双列螺旋槽机械密封的静态轴向刚度。
3
The hub treatment with a circumferential groove was tested on the stator hub and compared with the casing treatment over the rotor tip for a single stage axial flow compressor.