P点和Q点分别表示该质点的两个位置.Points P and Q represent two positions of the particle.碰撞并不往往使质点减速.Collisions need not always act to slow particles down.我们可标记占据某个小领域的质点群.We label a group of particles occupying a small neighbourhood....
陀螺仪用于船舶 、 飞机和宇宙飞船中的导航设备.Gyroscopes are used in navigational instruments for ships, aircraft, and spacecraft.借环形激光陀螺仪的技术,加以改进使之适用于流体流量的测量.Techniques borrowed from the ring laser gyro can be adapted to fluid flow measureme...
In the old animistic world view, people believed that nature was organised by invisible souls.过去信仰万物有灵论的人们认为自然是由看不见的灵魂安排的。The Uktena tribe is composed of animistic ( some would say primitive ) peoples from throughout the...
在德国，联邦银行行长欣然接受了这项措施。In Germany, the move was welcomed by the Bundesbank president.能有这般待遇和机会表达自己的看法，他欣然领受。He lapped up the attention and the opportunity to voice his thoughts.当母亲建议她留下时，艾丽斯欣然允之。When her mother suggested th...