high ca fly ash 高钙粉煤灰
St Joseph High School CA 圣约瑟夫高中
Junipero Serra High School CA 赛拉高中
Cardinal Newman High School CA 纽曼高中
high sn low ca 高锡低钙
Semi-solid rheorolling may be a new kind of technology for making high ca…
半固态轧制有可能成为未来高碳工具钢生产的一种新工艺。
The Meishan mirabilite ores are characterized by high Ca content, large mirabilite crystalline, shallow occurrence depth and giant reserves.
眉山市芒硝矿以含钙量高、 矿物晶体较大、埋藏浅、规模大为特点,目前采用洞室水溶法开采。
It has been found that the Ca, Mg, la ion exchanged mordenites have both high activity and high selectivity toward dimethylamine with the yield of around 55%.
发现钙、镁、镧离子交换的丝光沸石,在表现出较高活性的同时,还对二甲胺具有55%左右的高选择性。
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