查询词典 sulfide

As pyrites from Archean black shales worldwide show similar Fe iso- tope features to those from the two Chinese sulfide deposits, the enrichment of light Fe isotopes in early Precambrian ocean is likely to be regional, or even global.

导致早前寒武纪海洋富集Fe轻同位素的原因是海水中大量的Fe被氧化形成了富集Fe重同位素的磁铁矿和赤铁矿。

Working conditions of drilling string is complex underground, various factors ofteninteract, in the process of drilling, drilling string acts complex movement in drill fluid, drillfluid unavoidable corrupt drilling string because such as oxygen, hydrogen sulfide and manysalts are dissolved in it. At the same time, many cyclic stresses act on drilling pipe, such asflexural cyclic stress, torsional cyclic stress.

钻柱在井下的工作状态是复杂的，常常是多种因素交织在一起的，在钻井过程中，钻柱在溶解了氧、硫化氢及各种盐类的钻井液中作复杂运动，不可避免的受到它们的腐蚀作用，同时还要受到弯曲、扭转等交变应力作用。

The preparation method of sulfide standard solution was studied with improved elthylene blue method and total differential spectrophotometric method .

用改进的乙基蓝法和用全差示光度法，研究了硫化物标准溶液的配制方法。

Using the procedure described in Example 1, boron trifluoride diethyl etherate (1.49 liters, 12.1 moles) was added followed by 1.21 liters (12.1 moles) of borane-dimethyl sulfide at reflux.

用所述的程序例子1 ，硼乙醚（ 1.49升， 12.1痣），然后又说是1.21升（ 12.1痣）的硼-二甲基硫醚在回流。

It was selected the major components of the odor from aquatic feed factory,and hydrogen sulfide,ammonia and trimethylamine were taken as the target pollutants.

以水产饲料恶臭废气中的主要组分H2S、NH3和三甲胺为研究对象，采用生物填料塔进行脱臭的试验研究，考察运行生物填料塔的主要影响因素及污染物净化处理效果。

By selecting major components of odors(hydrogen sulfide,ammonia and trimethylamine) from feeding factories as targets,the purification characteristics of using biological packed column s were studied.

以水产饲料企业生产废气中的H2S、NH3和三甲胺为处理对象，研究了生物填料塔净化恶臭废气的性能，考察了进气浓度、流量、循环液喷淋密度对恶臭净化率的影响。

By selecting major components of odor s(hydrogen sulfide,ammonia and trimethylamine) from feeding factories as targets,the purification characteristics of using biological packed columns were studied.

以水产饲料企业生产废气中的H2S、NH3和三甲胺为处理对象，研究了生物填料塔净化恶臭废气的性能，考察了进气浓度、流量、循环液喷淋密度对恶臭净化率的影响。

Results The Bartonella sp.strains could decompose disaccharide without disassociation of glycose,trisaccharide and spirits,and produce bacillosporin with positive of glucose oxidation and ureolysis test,negative of hydrogen sulfide production test and oxidase test....

结果检测到巴尔通体菌株具有分解双糖，不分解单糖、三糖和醇类，葡萄糖氧化阳性，硫化氢试验阴性、尿素分解试验阳性，氧化酶试验阴性，能产生多粘菌素等生化特性。结论全自动微生物鉴定系统能快速检测出巴尔通体一些特殊的生化反应特性。

It exists uncombined in two stable allotropes, one gray and one yellow, but is more often found in nature as the sulfide or oxide.

它存在两种稳定同素异性体，即灰砷和黄砷，但大多发现于自然界的硫化物和氧化物中。

We studied simultaneous removal of sulfide and nitrite by an anaerobic process in an upflow anaerobic sludge blanket reactor.

采用上流式厌氧污泥床反应器研究了亚硝酸盐型同步厌氧生物脱氮除硫工艺的性能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。