dross

英 [drɒs]

美 [drɑːs]

n. 劣质品; 糟粕; 废料; (尤指金属溶液的)浮渣

BNC.32850 / COCA.35186

牛津词典

noun

劣质品；糟粕
something of very low quality; the least valuable part of sth
1. mass-produced dross
  成批生产的劣质品
废料；（尤指金属溶液的）浮渣
a waste substance, especially that separated from a metal when it is melted

N-UNCOUNT 渣滓;废物
If you describe something asdross, you mean that it is of very poor quality or has no value.
1. I go through phases where everything I write is just dross.
  有几段时间我写什么都是垃圾。

noun

worthless or dangerous material that should be removed
1. there were impurities in the water
Synonym:impurity
the scum formed by oxidation at the surface of molten metals
Synonym:slagscoria

Your silver has become dross, your choice wine is diluted with water.
你的银子，变为渣滓，你的酒，用水搀对。
Remove the dross from the silver, and out comes material for the silversmith;
除去银子的渣縡，就有银子出来，银匠能以做器皿；
Recovery of Metallic Zinc Dross and Ash Formed in Hot Galvanizing Zinc by Means of Hydrometallurgy
由热镀锌灰、锌渣湿法再生金属锌的研究
The dross inevitably will be first on the block.
糟粕资产必然会最先出售。
On the cultural level, however, the reform followed an approach of confirming the system's emphasis on ethics and discarding dross of the feudal morals.
而对其文化层面，对“宗法性”本身，则采取“扬弃”的态度扬其对伦理道德的重视，弃其封建道德的糟粕。
Frequent skimming or improper skimming can cause a much higher dross loss.
撇渣过频或操作不当会使浮渣损失很大。
All the wicked of the earth you discard like dross; therefore I love your statutes.
119凡地上的恶人、你除掉他好像除掉渣滓。因此我爱你的法度。
Synthesis of Sialon Powders from Aluminium Dross and Fly Ashes
采用铝灰和粉煤灰合成Sialon粉
Preliminary exploration of different ratios of wine dross and cottonseed hulls is made.
对酒糟与棉籽壳不同比例的配方栽培平菇进行了初步探索。
We need the sacred fire to consume the dross.
我们需要圣洁的火来烧尽渣滓。