The landscape seemed to stretch into infinity.
风景似乎延伸到了无穷远处。
The streets are canals of motionless air fading into infinity like screaming sirens: motionless air, glassy with frost or soft with haze, stirred only by the trams skimming by on their rails.
街道如同一条运河,静止的空气在其中就像发出尖叫的汽笛:静止的空气,霜冻一般光滑,烟雾一般柔软,被徐徐划过的有轨电车的尾部所惊扰。
So far the examples have picked objects using the default shape: an imaginary ray going from the viewer's eye position through the mouse pointer into infinity.
目前为止的例子都是使用缺省形状拣选对象:可以假想是一根从观察者眼睛的位置经过鼠标点至无穷远处的射线。
Infinity is the force when we're thinking about it and our brains, negative infinity is when we actually plug it into the equation here, and the reason is the convention that the negative sign is just telling us the direction that the force is coming together instead of pushing apart.
说力有多大时,我们想到的,是无穷大,而方程解出来的,是负无穷,这是因为习惯上,我们用负号表示力的方向,是相互吸引而不是相互排斥的,所以我们可以用库仑定律。
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