The influence of quartz sand quality on mattes production in flash smelting is analyzed. The way to achieve better economic benefit is approached to in this paper.

分析了闪速冶炼中石英砂品质对冰铜生产的影响，以探求取得更好经济效益的途径。

youdao

Countries and industries of sand enterprise's production and quality conditions with no requirement.

国家和行业也对砂石企业的生产与质量条件无所要求。

youdao

The presence of the coagulant increased the quality of sand filtrated water, which resulted in the higher flux.

在场的情况下增加混凝剂的质量砂过滤水，导致更高的流量。

youdao

Even the sand wasn't very good quality.

BBC: North Korea's voyage of discovery

George Sand's work is of uneven quality.

ECONOMIST: France remembers a prolific author

Hermit crabs are all over the atypical black sand beaches, where the sand is so dark it exudes an ominous and divinely desolate quality.

FORBES: Take A Trip To The "Happiest Country On Earth"