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- Study on Bayer Process-Double-Fluid Digestion of Flotation Bauxite Concentrate 铝土矿浮选精矿拜耳-双流溶出工艺的研究
- Research on Leaching Process of Bauxite Concentrate by Industrial Circulated Alkali Liquor During Alumina Production 氧化铝生产中工业循环碱液选精矿溶出工艺研究
- It's too hot to concentrate on book. 热得不能集中心思看书。
- I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰。
- I can't concentrate on my work when I'm tired. 我累了就无法集中精力工作。
- Don't put me off when I'm trying to concentrate. 我正要集中注意力呢，别打搅我。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
- She couldn't concentrate on a book very long. 她不能长时间专心读一本书。
- I must concentrate upon my work now. 我现在必须集中精力工作。
- bauxite concentrate 选精矿
- Birds concentrate (in places) where food is abundant. 鸟聚集在食物丰盛的地方。
- A bauxite spinel castable for furnish is prepared. 研制了矾土尖晶石钢包浇注料。
- She felt ill. She went to work, however, and tried to concentrate. 她病了。然而她照旧去上班，并且尽力集中精神工作。
- We must concentrate our efforts on improving education. 我们必须致力於改进教育工作。
- I can't concentrate with you breathing down my neck. 你这样紧紧盯著我，使我精神无法集中。
- A racking headache made him unable to concentrate on his study. 折磨人的头痛使他不能全神贯注地学习。
- Aluminium is a metal which is produced from bauxite. 铝是一种从铝土矿提炼出的金属。
- Will you children shut up?! I can't concentrate on my work. 孩子们可以请你们闭嘴吗?我没法子专心工作。
- They chose to concentrate on simpler and more durable hardware. 他们选择加强更简单牢固的武器。
- A city of central Arkansas southwest of Little Rock. There are bauxite deposits in the area. Population, 18,177. 本托美国阿肯色州中部，位于小石城西南。该地区产铝土矿。人口18,177。
