Experiment research synthesis of additive by chemical conversion of lignin sulfonate introduced.

论述了木质素磺酸盐化学改性制取水煤浆添加剂的试验研究.

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The microorganisms employed include mainly chemical conversion bacteria, phototropic bacteria and alga.

所利用的生物体主要包括:化学转化细菌 、 向光性细菌和藻类.

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And points out the direction of investigation on chemical conversion coatings of aluminum and its alloys.

并对铝及其合金无铬化学转化膜的研究方向提出展望.

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