1979—1981年甘肃省地质局副处长、工程师。
1979-1981 Deputy section chief and engineer of Gansu Provincial Geological bureau.
机构铰接副处过大间隙将引起异常的振动与噪声,加速了疲劳与磨损,严重地影响了机器的动态性能。
Excessive clearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.
如果你很容易晕船,可以在登船时戴上能够施加压力的手镯,或是服用生姜,再或是贴上一副处方药膏。
If you get seasick easily, you may prepare for boat rides with pressure-point bracelets, ginger, or a prescription skin patch.
如果你很容易晕船,可以在登船时戴上能够施加压力的手镯,或是服用生姜,再或是贴上一副处方药膏。
If you get seasick easily, you may prepare for boat rides with pressure-point bracelets, ginger, or a prescription skin patch.
应用推荐