Riprap

"After the excess niello is scraped away, the surface is polished."

将多余的黑金刮掉,再将表面拋光。

Grind it using a fine emery paper or buff it up.

请用细砂纸或锉刀研磨，或者用拋光器磨光。

extension rescue

向遇溺者拋掷救生圈

The car Broke down in the intersection.

车子在交叉路口拋锚。

litter trend analysis

乱拋垃圾案件趋势分析

put something out of one's head; forget something

"不再想某事,忘掉它,拋到九霄云外"

anti-litter enforcement action

防止乱拋垃圾执法行动；检举垃圾虫的执法行动

I'm afraid that this idea is still somewhat conservative, not advanced, and should be cast aside.

恐怕这种观念还比较保守﹐不先进﹐应该拋弃。

Importers flooded the market with cheap toys just before Christmas.

进口商们在圣诞节前大量拋售廉价玩具。

"Examples include rock drills, pavement Breakers, riveters, forging presses, paint sprayers, Blast cleaners, and atomizers."

如钻岩机、路面破碎机、铆钉枪、锻压机、喷漆器、喷拋清理机和喷雾器等。

He blithely ignored her protests and went on talking as if all were agreed between them.

对她的抗议他毫不在意地拋诸脑后，只管继续往下说，仿彿他们之间什么都谈妥了似的。

To become shiny or lustrous.

发光，有光泽、光彩

the light of the sun, a lamp, the fire, etc

阳光、 灯光、 火光.

luminescence spectrum

发光光谱,荧光光谱

photoelectric spectropolarimeter

光电旋光分光光度计

double-beam grating spectrophotometer

双光束光栅分光光度计

a shaft of light/sunlight/moonlight/lightning

一道光[阳光/月光/闪光

light lumination

光照明, 光放射, 放光