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 team consisted of six investigators and two secretaries.这个团队由六个调查人员和两个秘书组成.Now, investigators report the effects of fenofibrate on FIELD's tertiary endpoint of nontraumatic lower - limb amputations.现在调查报告了非诺贝特在F...
We pried open the locked door with an iron bar.我们用铁棍把锁着的门撬开.They pried open a sticky can of blue paint...他们撬开了一个黏糊糊的蓝色油漆桶。A gust of wind pried loose a section of sheet-metal roofing.一阵狂风把铺在屋顶上的一块金属片掀起来了。A gust of wind pr...
Her work involved more than administration of first aid to the wounded.她的工作不仅是对伤者的急救.We all know first aid.我们都会急救.Always keep a first - aid kit handy .手边要经常有个 急救箱....