布莱克很熟练地跳上了船,他的重量使小船微微向下沉了沉。Blake jumped in expertly; the boat dipped slightly under his weight.他熟练地左一拐右一拐地绕过深沟,穿过了原野。Expertly he zigzagged his way across the field, avoiding the deeper gullies.他熟练地撬开每一把锁,把每个抽屉里的文件都偷走了。He...
这一点是指其身体上的发光斑或发光点.This may show as luminescent blotches or spots on the body.我们将它称为光束的 “ 光斑尺寸 ”.We will consequently refer to it as the beam'spot size ".如果孔是圆形的, 那么在屏幕上出现一圆形光斑.If the aperture is circular, a circular...