和硫

The planet is probably well supplied with minerals containing combinations of magnesium, iron, silicon and oxygen ferromagnesian silicates , and combinations of iron and sulfur (troilite There may .

火星可能蕴藏了大量的含有镁，铁，硅和氧的化合物以及硫铁化合物的矿物质，可能还有一些游离铁。

Effect of additives and fineness on the properties of sulphoaluminate cement were investigated by experiments.

本文通过大量的实验工作，探讨了细度和外加剂对硫铝酸盐水泥性能的影响。

Twenty-eight strains of purple nonsulfer photosynthetic bacteria isolated from river water and fish-pond mud were identified, and their characteristics were studied.

从河水、鱼塘底泥等样品中分离到28株紫色非硫光合细菌，分别对其进行鉴定和生理特性研究。

Up-regulated proteins under salt stress include an ABC transporter permease, glycerol-3-phosphate permease, pyrimidine nucleotide transporter, formate dehydrogenase, and down-regulated proteins include succinate dehydrogenase iron-sulfur subunit, flavoprotein subunit, cytochrome b-556 subunit, and a hypothetical membrane protein similar to charperone DnaJ. Some of these changes were further verified by enzyme activity assay.

盐胁迫诱导上调表达的蛋白包括ABC型转运蛋白，3-磷酸甘油透性酶，嘧啶核苷转运蛋白和甲酸脱氢酶；下调表达的蛋白包括琥珀酸脱氢酶铁硫亚基、黄素蛋白亚基、细胞色素b556亚基，以及分子伴侣DnaJ的同源蛋白，酶活力测定结果表明胁迫条件下上述蛋白的活性变化与表达量变化相一致。

The results indicated that 1.8% Avermectin EC has the best control efficiency after 10 days treatment, and have the same effect with 40% Phoxim EC and 10% Imidacloprid WP to Rehmanniae flea beetle. And it has the lower effect on natural enemy too.

结果表明，1.8%阿维菌素乳油5000倍液药后10d对地黄跳甲防效好，与对照药剂40%辛硫磷乳油1000倍液和10%吡虫啉可湿性粉剂5000倍液的防效相当，而且对天敌影响小。

MethodsThe atomic absorption spectrophotometry and sulfurcarbon detector were used to determine 16 trace elements in 10 species of Fritillaria origin of determination.

方法利用原子吸收分光光度器和定碳定硫器对10种产地贝母中的16种微量元素进行了测定。

So, Au and Ag are tend to be dissolved and moved from rocks to fluid phase at high temperature, and tend to precipitate from fluid when there is a drop of temperature and pressure, oxygen fugacity or a rise of alkalinity.

较高的温度下，流体中的银和辉银矿处于"饥饿"的欠饱和状态，从而岩石中分散的银会不断地进入流体，转化为银的硫氢络合物形式，以满足流体对银的需要。

Based on functional group transformation and C-C bond formation,this review focuses on the first-rate progress of the catalytic asymmetric reaction in China in recent years,especially its application in synthesis of chiral drugs and pharmaceutical intermediates.

本文从官能团的转换和碳硫键形成的角度概述了我国近年来在不对称催化反应领域的研究进展，特别是在手性药物及其中间体合成中的应用进展。

The δ^34S in pyrite and galena range from 1.91×10^(-3) to 3.14×10^(-3), showing the mantle sulfur feature.

矿石中黄铁矿和方铅矿δ^34S的变化范围为1.91×10^(-3)3.14×10^(-3)，具有幔源硫的特征。

OBJECTIVE: To study the effects of various doses of gamma radiation on the biomechanical properties of rat bone and the protective role of dry ice and thiourea.

目的：探讨不同剂量gamma射线辐照对大鼠骨生物力学的影响及干冰低温和自由基清除剂-硫脲的保护作用。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。