硫黄

Carotenoids in carrots and tomatoes, isothiocyanates in broccoli and cabbage, and flavonoids in soy, cocoa and red wine are just a few examples.

象胡萝卜和番茄中的胡萝卜素，花椰菜和洋白菜中的异硫氰酸酯，大豆，可可粉和红酒中的黄酮就是一些例子。

Carotenoids in carrots and tomatoes, isothiocyanates in broccoli and cabbage, and flavonoids in soy, cocoa and red wine are just a few examples.

例如，胡萝卜和番茄中的类胡萝卜素、椰菜和卷心菜中的硫氰酸盐、以及大豆、可可和红酒中的类黄酮。

With butyl xanthate as a collecter, the flotation behavior of jamesonite, pyrrhotite and marmatite, the depressing effects of small mercapto organic depressant (mercaptoacetic acid, mercaptoethanol ) and the effect of Cu2+ ion on depressing ability of mercapto compound were studied through flotation test and infrared spectrum.

摘 要：通过浮选实验、红外光谱测定，考察了脆硫锑铅矿、磁黄铁矿和铁闪锌矿在丁黄药作用下的浮选行为和巯基类小分子有机抑制剂对三种矿物的抑制效果以及Cu2+离子对巯基化合物抑制效果的影响。

Which is considered to be a key organoleptic constituent of Yellow Passion Fruit.

甲基-4-丙基 1，3-氧硫环己烷(Fema：3578)的香气，哪一个被认为是黄热带水果的主

Profile to 2-methyl-4-propyl-1, 3-oxathiane (Fema: 3578),which is considered to be a key organoleptic constituent of Yellow Passion Fruit.

甲基-4-丙基1，3-氧硫环己烷(Fema：3578)的香气，哪一个被认为是黄热带水果的主

The results are in good agreement with available experimental results. The entropy effect on the Gibbs free energies of 6-thioxanthine base is very small and there is little significance for the tautomeric equilibria of the base.

计算结果同已有实验结果一致。6-硫代黄嘌呤异构化的熵效应小，对互变异构平衡几乎没有显著的影响，而焓变对互变异构产生了主要的影响。

Properties of frontier orbital of xanthogen formates and ethoxycarbonyl thionocarbamates, including HOMO energy, shape of HOMO and atomic HOMO density, were calculated with quantum chemistry programs GW03 and FUJISTU CAChe. According to the results, the relationship between selectivity of such two kinds of collectors and their quantum chemical indices was investigated to discuss the feasibility of applying them in screening chalcopyrite collectors.

摘 要：利用量子化学软件GW03和FUJISTU CAChe计算黄原酸甲酸酯类、乙氧羰基硫氨酯类黄铜矿捕收剂的前线轨道的性质—HOMO能量、HOMO形状以及药剂组成原子的HOMO密度，并结合这两类药剂的浮选结果研究这些量化参数与药剂选择性之间的联系，探讨这些参数作为选择黄铜矿捕收剂判据的可行性。

Typical precipitatingagents that have been used include sodium or calcium hydroxide , iron sulfide , sodium dimethyldithiocarbamate, sodium hydrosulfite , and starch xanthate.

典型的沉淀已使用的药物包括钠或氢氧化钙，铁硫醚，二甲基二钠，亚硫酸钠，淀粉黄原酸酯。

In this paper, the preparation of iron oxide yellow and iron oxide red with pyrite cinder was studied.

文摘：对利用硫铁矿烧渣制备氧化铁黄和氧化铁红进行了研究。

The technological process for the preparation of iron yellow from iron sulfide slag by sulfate oxidation method is described.

介绍了以硫铁矿烧渣为原料，采用湿法硫酸盐氧化法制备氧化铁黄的工艺过程。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐