When the concave upper nut is tightened , the effect produced is exactly the same as that produced by a hammer driving in a wedge .
当上螺母的凹面与之锁紧时,其效果与用一个锤子敲进一楔子的效果完全相同。
Cool earth 's insight was that if you coat only one half of a balloon , leaving the other transparent , the inner surface of the coated half will act as a concave mirror .
Likewise , the click of a button in apple 's safari browser shows mini representations of your 12 top websites in a concave view that makes you feel like you 're sitting in a round room .
I puzzled over a tiny circle on don 's plate it turned out to be a thin , concave round of turnip encasing a dollop of tahini and a tiny chervil leaf .
The newest work is anish kapoor 's lacquered bronze concave reflector , which was made earlier this year .
而最新的一项作品为安妮施卡普尔的涂漆铜制品凹面反射镜,该作品是今年上半年制作的。
Because there is no abrasion between the concave and convex , the nut is reusable .
因为凹面与凸面没有磨损,螺母可以重复使用。
A concave mirror creates an image from this light using a design pioneered in the 17th century , by sir isaac newton .
早在17世纪,艾萨克.牛顿就开创性的利用这个光,让凹透镜产生了一个图像。
The roof 's concave shape deflects the wind and redirects it around the stadium .
屋顶内凹的形状可以使经过的风转向,让其环绕球场而过。
We can imagine the water spinning regardless of whether the bucket is spinning , by picturing the height of the water and whether it forms a concave surface .