depressants

1·The influence of low molecular organic depressants such as citric acid on the floatability of spodumene and beryl, as well as inorganic modifiers has been studied through flotation tests.

考察柠檬酸等有机小分子抑制剂和其他无机调整剂对锂辉石与绿柱石的抑制作用。

2·The better test result was obtained by using combined depressants of lime, BS and DS which strengthened the depression to pyrite.

采用石灰与BS、DS组合抑制剂加强对黄铁矿的抑制，取得了较好的选矿指标。

3·The flotation separation of molybdemun, copper and bismuth sulfides minerals, which are obtained by table flotation of wolframite primary concentrates, is studied using sulphites as depressants.

本文论述采用亚硫酸盐作抑制剂，对黑钨粗精矿精选枱浮钼、铜、铋硫化矿浮选分离的研究。

4·The results indicated that modified starch is one of good depressants in flotation system of silica-magnetite;

研究结果表明：改性淀粉是石英-磁铁矿分选体系的良好抑制剂之一；

5·In this thesis, effect of several inorganic depressants on flotation behavior of ilmenite and titanaugite were studied using sodium oleate as collector by flotation tests.

论文以油酸钠为捕收剂，研究了几种无机抑制剂对钛铁矿与钛辉石可浮性的影响。

1·Drug abuse Control Amendments are enacted to deal with problems caused by abuse of depressants, stimulants and hallucinogens.

制定《药物滥用控制修正案》以处理滥用镇静剂、兴奋剂和致幻剂所引起的问题。

2·Psychoactive substances are commonly grouped according to whether they are stimulants depressants or hallucinogens.

刺激神经类物质通常分为兴奋剂、镇静剂和幻觉剂。

3·Stimulants initially speed up or activate the central nervous system, whereas depressants slow it down.

兴奋剂主要起到加速或激活中枢神经系统的作用，而镇静剂则相反：减缓它的活动。