中心力是由球对称的势能函数而来的力.A central force is one derived from a potential - energy function that is spherically symmetric.有心力是一种径向力,它的大小只取于离原点的距离.A central force is a radial force which depends only on the distance from the orig...
他们展览了出土的汉代文物.They exhibited unearthed cultural relics of the Han Dynasty.展览馆里陈列着许多新出土的文物.Many newly unearthed cultural relics are set forth in the exhibition hall.出土的人类化石有助于复原人类生活的最早期阶段.Human fossils unearthed there are ...
一束耀眼的阳光从门口照射进来。A brilliant shaft of sunlight burst through the doorway.门口的队伍绕了大楼一圈。The queues at the door wound around the building.他来到花园门口，挤了进去。He reached the garden gate and thrust his way through it....