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...
这些修葺一新的房屋俯视着静静流淌的运河河网。These restored houses overhang a system of quiet canals.雕像用一双盲眼俯视着他们。The statue stared down at them with sightless eyes.他将窗帘拉到一边, 俯视街道.Drawing the curtain aside, he looked down into the street....
It has performed reliably when used at very high retentions in full - cell impregnation processes.当用满细胞法使它具有很高的保持量时,它的使用是很可靠的.Structure and performance of aluminum impregnation to steel _ container are studied.研究了渗铝包子桶的组...