它绕着质心的椭园运动就几乎看不出来.Its own elliptic motion around it will be almost imperceptible.在无外力时,质心的速度是常量.The velocity of the center of mass is constant in the absence of external forces.错误的根源在于混淆了质心与重心 吗 ?Do We Mistake Center of ...
The repairman reported back that the computer had a virus.修理工报告说电脑染了病毒。The repairman installed an iron latch on the door.修理工在门上安了铁门闩.The TV repairman approximated the cost at fifty dollars.电视修理工估价为50美元....
The result would be the observed gradual change in fibril orientation.结果形成所观察到的原纤取向的逐渐变化.The invention relates to optical fiber fibril arraying device used to transmit light beam.传光束用光纤排丝装置,是对传光束用光纤自动排丝装置的改进.There are di...
利用石墨煤增碳的炼钢技术,工艺简单可行, 增碳稳定, 应用广泛.This technical process is simple, carburization is stable, application is widely.对于药芯焊丝,增碳的门槛值在0.05%左右.The critical value of carbon increasing for FCW is about 0.05 %.添增碳粉 、 或者调换硒鼓中部制卡和会员卡...
A downpour of rain put out the children’s bonfire.一阵大雨把孩子们的营火都浇灭了。The seeds that had been sown were almost completely washed away by a sudden downpour.已经播下的种子几乎被一场突如其来的暴雨全冲走了。It was the heaviest downpour ever recorded.那是...