We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.用复数算术推导了正弦,余弦的加法公式.The designing amendatory formulas will make the marine gearing of ship become more reasonable and safer.利用此公式计...
Let's try and reduce it to formulas.咱们设法把它归纳成公式吧.Other formulas for setting the charges therefore must be considered.因此,必须考虑其他的解决收费的方法.In all the formulas for mold spray, a common ingredient is water.在给出的所有脱模剂配方中, 水...
这款相机既坚固耐用，又有超凡的光学性能和快门速度。The camera combines rugged reliability with unequalled optical performance and speed.摄影师停止按动快门，匆匆绕过拐角。The photographer stopped clicking and hurried around the corner.对这类相机而言，快门的速度是固定的。With this t...