税收类法律文书 Duties & Tax
吸收人类文明有益成果 draw on the achievements of other civilizations
签收类型代码 SignTypeCode
分类回收和循环利用 the sorting and recycling of garbage
垃圾分类收集 separate waste collection ; sorted refuse collection
托收的种类 Types of collection ; Kinds of Collection
分类收集 separate collection ; Sorting Collection ; sorted collection
收入分类 income classification ; classification of income
运作类允收质量水平 acceptable quality level ; AQL ; l acceptable quality level
考察了不同碳链长度的胺类捕收剂对异极矿石英白云石和褐铁矿浮选行为的影响讨论了胺的碳链长度对捕收异极矿的影响。
A series of experimental studies were made on the effect of amide collectors with different length of carbon chain on flotation behaviors of hemimorphite quartz dolomite and limonite.
使用两性捕收剂能改善萤石-方解石分离的选择性，而生物脂类则可有效排除萤石精矿小的二氧化硅。
Use of the amphoteric collectors can improve the selectivity of fluorite-calcite separation and the biological esters can remove effectively silica from fluorite concentrates.
双反浮选流程由于使用了阳离子胺类捕收剂，一定程度上克服了胶磷矿常规浮选需要加温的缺点，并且药剂成本较低。
Due to the use of amine collector, the double reverse floatation flow had overcome the shortage of heating in the routine floatation of phosphorus, and its drug cost was relatively low.
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