The nails in his boots grated on the stones.

他靴子上的钉子在石头上发嘎嘎声。

The grit beneath her soles grated harshly on the wooden deck.

粘在她鞋底的沙砾蹭在木甲板上发刺耳的声音。

The fire in the grate looked impish-demoniacally funny, as if it did not care in the least about her strait.

壁里的残火，张牙怒目，鬼头鬼脑，仿佛表示对于她的窘迫，丝毫都不关心。

For grating in the optical pick-up head, the compensability between the longitudinal and transverse error practical references on the manufacture of grating.

对光学头分束光，加工误差与横加工误差间存在的互补性，对光的具体制作有着实际的参考价值。