轴向拉伸比和环向扩张比要合理匹配。
The axial drawing ratio and hoop extension ratio should be properly matched.
阐明了动静叶片数的匹配及其轴向间距的配置在轴流通风机气动设计与结构设计中占有重要位置。
It is the main points that rotor and stator blades matching and the axial distance disposition in pneumatic and structural design for axial fan.
刀头在旋转的同时随螺钉轴向进给，转速与进给量匹配，保证刀头与螺钉不脱节。
The tool head can move along with the screws while rotating and its feeding matches with the rotating speed, thus keep the tool head from skipping from the slot.
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