grating

noun

1. optical device consisting of a surface with many parallel grooves in it
disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum

Synonym: diffraction grating

2. a frame of iron bars to hold a fire

Synonym: grate

3. a barrier that has parallel or crossed bars blocking a passage but admitting air

Synonym: grate

adj

1. unpleasantly harsh or grating in sound

e.g. a gravelly voice

Synonym: gravellyraspingraspyroughscratchy

1. 栅栏；格子；格栅
A grating is a flat metal frame with rows of bars across it, which is fastened over a window or over a hole in a wall or the ground.

e.g. ...an open grating in the sidewalk.
人行道上敞着的下水道格栅

2. （声音）刺耳的
A grating sound is harsh and unpleasant.

e.g. She recognized the grating voice of Dr. Sarnoff.
她听出了萨尔诺夫博士刺耳的嗓音。

1. 光栅：即可放出雷射光. 因各振动转动能阶很密集,产生的雷射光涵盖某一范围的波长. 若在共振腔使用一光栅(grating)即可达续调变雷射光的波长. 变化不同的染料,能够产生不同波段的可调频雷射光.

2. grating的意思

2. 格栅：防护甲板的开口部位都有装甲盖板或格栅(grating)来阻挡炮弹的穿透. 而在必须保持开放的通道部分则采用了防水隔舱,由此形成一个完整的防护体系. 总的来讲,采用了穹顶的防护甲板为舰体提供了良好的防护性能并尽可能地将炮弹的穿透动能降至最低.

3. 格子板：(11) 管路穿过楼层之格子板(Grating)时,承包商须负责切割格子板成适当之形状,以运转状态下距保温外被覆材料外缘[50mm][ ]为原则,并以[厚3mm×宽100mm][ ]扁钢弯制焊装於格子板上.

4. grating是什么意思

4. 栅栏：我顺着铿锵作响的铁丝网板向前走,昏暗的灯光下活老鼠没见着,死老鼠(Rat)倒有一只,尽头透过圆形的铁栅栏(Grating)可以看到Rotmall 17月台就在下面. 死老鼠也能派上用场,我可以扔过去,太假了吧......对,我把它绑在旱冰鞋(Skate)上再推过去,