A yellowish-brown nickel iron sulfide that is the principal ore of nickel.

The extraction behavior of dialkyl ( aryl ) Sulfides may be controlled by polar and steric substituents effects.

二烃基 ( 基 ) 醚的萃取行为受极性和空间取代基效应的控制.

The mineralization of silver at the late stage of formation of sulfides, i. e.

银形成于硫化物成矿后期的硫锑铅矿─方铅矿─ 黄铜矿 ─银黝铜矿阶段.

In contrast, transition-metal sulfides are less reactive and susceptible to poisoning and can show higher selectivity.

相反, 过渡金属硫化物作为催化剂反应活性低、不容易中毒显示了很高的选择性.

These sulfides can cause illness, however at levels about a thousand times greater than that.

这些硫化物具有致病性, 但前提是,把可乐中含有的残留量乘上一千倍.

Interest in transition-metal sulfides arises from their significance in industrial catalysis and biology.

过渡金属硫化物在工业催化和生物和上的重要性引起了广泛的研究兴趣.

Sulfur often combines into sulfides or sulfates.

硫磺,往往结合成硫化物或硫酸盐.

Carbon steel -- Very good mechanical properties; good resistance to stress corrosion and sulfides.

碳钢 -- 具有很好的机械特性; 良好的抗金属超应力腐蚀的能力和抗硫化物腐蚀的能力.

The Xitan gold deposit is of a quartz vein-type with little sulfides.

西滩金矿属少硫化物石英脉型金矿.

The soluble sulfides are unstable, while the stable sulfides are unsolvable.

可溶的硫化物都不稳定, 稳定的硫化物都不可溶.

It's from sulfides, like from silver coins.

这是硫化物, 像银币表面上的那样.

The structure, properties, and applications of transition metal sulfides IF nano-materials , i.

系统的介绍无机类富勒烯金属硫化物纳米管、纳米洋葱及其 纳米 复合物的结构 、 性质和应用.

The sulfite is a wide used additive . It will hurt human's health to eat too much.

亚硫酸盐是一种用途广泛的食品添加剂,若摄入过多则对人体的健康产生损害.

The inhibition of pyrocatechol on sulfite oxidation was investigated by oxygen removal and air oxidation tests.

通过除氧试验和空气氧化试验,研究了焦儿茶酚对亚硫酸盐自动氧化的阻滞作用.

Therefore, it is feasible to substitute conventional alkaline deinking by near-neutral sulfite deinking in plant.

因此, 近中性亚硫酸钠脱墨代替常规的碱性脱墨在纸厂是可行的.

This paper also discusses the possible reaction mechanism by using sodium sulfite as reducing agent.

讨论了以亚硫酸氢钠为还原剂的可能的反应机理.

First steep corn powder in dilute sulfite liquor, then produce starch syrup by routine production procedure.

先用稀亚硫酸溶液浸泡玉米粉, 再用常规操作生产淀粉糖浆工艺.

Introduce the sodium sulfite-AQ using in AP rice straw pulp and effect to paper & pulp properties.

介绍了亚硫酸钠 - 蒽醌在烧碱法稻草浆中的应用试验情况以及对 纸浆 性能的影响.

However, for those allergic to sulfites, their presence can cause skin irritation and headaches as well.

尽管如此, 对于亚硫酸盐过瘾者,仍会产生肌肤过敏和头痛的症状.

Six sulfonamide pyridazinones and two pyridazinones derivatives were synthesized. Their structure and bioactivity were reported.

本文报道了磺酰胺类哒嗪酮衍生物的合成,结构分析及生物活性的研究.

Antibiotics ( penicillin ) or sulfonamides or both are prescribed in severe infections to prevent complications.

对严重感染者用抗菌素 ( 青霉素 ) 或磺胺类药剂,或两者合用,以预防并发症.