Heterotrophic bacteria eat most of the carbon-based materials in raw sewage while autotrophic bacteria consume ammonia and nitrogen compounds.
异养细菌可以吃掉未处理污水当中的大部分碳基物质；而自养细菌则会消耗掉氨氮化合物。
Another important group of petrochemical raw materials are the aromatic compounds, principally benzene, toluene and xylenes, which are mainly produced by catalytic reforming.
另一组重要的石油化学品原料是芳香烃化合物，主要是苯、甲苯和二甲苯，主要由催化重整制得。
Substances that have been manufactured by chemical means using petroleum compounds or natural gas as raw materials.
以石油化合物或天然气为原料用化学方法制造的物质。
Low molecular weight amines are important raw materials for synthesis of nitrogen_containing organic compounds.
低分子量的胺是合成含氮有机化合物的重要原料。
Base on the choice of various raw materials, fresh bark was chosen to extract Iridoids compounds such as geniposidic acid (GPA), aucubin (AU) and geniposide (GP).
通过对原材料进行研究，筛选出杜仲鲜皮为提取环烯醚萜化合物京尼平甙酸（GPA）、桃叶珊瑚甙（AU）和京尼平甙（GP）的原料；
As an important industrial raw materials and by-products of many industrial enterprises, phenolic compounds are now common industrial pollutants with features of a wide range and detrimental.
酚类化合物作为重要的工业原料和很多工业企业生产的副产物，具有使用范围广、对环境危害性大的特点，成为常见的工业污染物。
Triazine is a type of heterocyclic organic compounds, it is important to ring nitrogen organic chemical raw materials.
是一种三嗪类含氮杂环有机化合物，重要的氮杂环有机化工原料。
As a novel solid base catalyst, the hydrotalcite-like compounds have been attracted more and more attention due to its good catalytic performance, tunable structure and low cost of raw materials.
水滑石类化合物作为一种新型的固体碱催化剂，以其良好的催化性能，结构可调变性，原料价格低廉易制得等特点，受到了越来越多的关注和重视。
At present, glycerol was used as raw materials to produce more and more types of glycerides, triacetin, glycerin fatty acid ester, oleic acid ester compounds etc are widely used as chemicals.
目前，以甘油为原料生产甘油酯的种类越来越多，三醋酸甘油酯、单脂肪酸甘油酯、油酸甘油酯等甘油酯类化合物均为用途广泛的化工产品。
The preparation method comprises the following steps: 1) uniformly mixing soluble compounds, coal raw materials and binders, pressing and drying to obtain the dried mixture;
该方法包括如下步骤：1）将可溶性化合物、煤质原料和粘结剂混匀、压条并干燥，得到干燥后的混合物；
The preparation method comprises the following steps: 1) uniformly mixing soluble compounds, coal raw materials and binders, pressing and drying to obtain the dried mixture;
该方法包括如下步骤：1）将可溶性化合物、煤质原料和粘结剂混匀、压条并干燥，得到干燥后的混合物；
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