类胡萝卜素和石油醚提取物含量在陈化三个月时降低，之后上升。
The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
其他两种气体可以显著减小对环境的影响：异氟烷体现在温室气体的作用上仅仅是地氟醚的三分之一，而七氟醚只有地氟醚的八分之一。
The other two gases have significantly less impact: isoflurane is only a third as powerful a greenhouse gas as is desflurane and sevoflurance has only an eighth of desflurane's effect.
本文旨在探讨三聚氰胺对聚苯硫醚树脂的交联机理。
This paper approaches the effect of melamine on the cross-linking mechanism of polyphenylene sulfide resin.
三种n-氯乙酰取代的苯并含氮杂环化合物通过硫醚键的形成被导入嘧啶结构。
Three types of N? chloroacetyl substituted nitrogen? containing benzoheterocycles were introduced into pyrimidine by the formation of thioether.
本文首次报道一种新的高分子固载季铵树脂的合成及其在水解、成醚反应中的应用，此树脂是一种有效的三相催化剂。
This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.
报道新型有机分子——三方向醚键型分枝状化合物的合成。
New organic molecules the three directional ether bond branched compounds were designed and synthesized.
环氧乙烷广泛应用于合成乙二醇、二甘醇、三甘醇、乙醇胺、乙二醇醚和乙氧基化合物。
EO is widely used in synthesis of EG, diethylene glycol, triethylene glycol, aminoethyl alcohol, glycol ether, and oxyethylation compounds.
采用异丁醇醚化三聚氰胺树脂，可开辟原料来源和降低产品成本。
The use of isobutanol etherified melamine has widened the source of raw material and reduced the cost.
本文探讨了异丁醇醚化三聚氰胺树脂的工艺条件，并列举了异丁醇醚化三聚氰胺树脂漆膜性能。
This paper discussed the manufacturing process of isobutanol etherified melamine and the performance of the paint film based on the title resin.
结果：在川续断属植物中发现了三萜类、环稀醚萜类、生物碱、酚酸类、黄酮类和挥发油类化合物。
Results: the chemical constituents including triterpenoid iridoid alkaloids phenolic acids flavonoids and volatile oil were found in the plants of Dipsacus l.
以木屑纤维素为原料，以3 -氯- 2 -羟丙基三甲基氯化铵(CTA)为醚化改性剂，制备了阳离子木屑纤维素。
The cationic sawdust cellulose was prepared with the sawdust cellulose as raw material and 3-chlorine-2-hydroxypropyl chloride (CTA) as an etherification modifying agent.
本文研究在氢氧化铯催化下，三甲硅基乙炔与二芳基二硒醚的反应。
It has been researched on the reaction of trimethylsilylacetylene with diphenyl diselenide catalyzed by cesium hydroxide.
采用三官能度的聚氧化丙烯醚醇、聚乙二醇，合成了吸水膨胀率在0～200%的聚氨酯弹性体。
Using tri-functionality polyoxytrimethylene alcohol ether and polyethylene glycol, synthetize polyurethane elastomer with water absorption expansion rate of0~200%.
采用苯甲酸改性的醇酸树脂和混合醚化的三聚氰胺甲醛树脂为基料，配以适量的锤纹助剂制成高固体分低温快干型氨基锤纹漆。
The high-solid fast drying amino hammer paint is prepared with benzoic acid modified alkyd resin and etherified melamine-formaldehyde resin as binder, hammering agent and other components.
用酯肪醇聚氧乙烯醚磷酸酯三乙醇胺盐为单体复配的油剂，其在腈纶中的应用情况与进口日本油剂相当。
The built finish oil using fatty alcohol polyoxyethylene phosphonate tri-ethanolamine salt as monomer had the performance equal to the imported ones from Japan.
为了改善蚕丝织物的服用性能，提高其抗皱和抗菌性能，用丙三醇缩水甘油醚和壳聚糖对蚕丝织物进行后整理。
The silk fabric was treated with propanetriol-diglycidyl-ether and chitosan in an attempt to improve its serviceability, anti-bacterial and wrinkle resistant properties.
三聚氰胺、尿素与甲醛经羟甲基化、醚化反应，生成甲醚化六羟甲基三聚氰胺和甲醚化羟甲基脲复合树脂胶。
Melamine, urea and formaldehyde underwent hydroxymethylation and etherification to yield a composed resin glue of methyl-etherified hexahydroxy methylmelamine and methyl-etherified hydroxymethylurea.
本文介绍了三氟甲基苯硫醚的制备方法和它的具体应用。
Various method of preparation and application of Sulfide phenyl trifluoromethyl are introduced.
以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。
Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethylene ether and sulfamic acid using urea as catalyst.
该科植物主要含三萜皂苷、环烯醚萜苷、黄酮、挥发油等类型的化合物。
The main chemical constituents from dipsacaceae species were triterpenoid saponins, iridoidal glycosides, flavonoids, essential oils, etc.
方法以对羟基苯甲酸为原料，经三步合成，即原料的醚化、酰氯制备和酰胺化。
Methods The substance was synthesized from P-hydroxybenzoic acid through three steps, those are etherification, preparation of acyl halide and amidation of the raw material.
另一些鱼在接触杀螟松之前分别用胡椒基丁醚(pbo)和磷酚三苯酯(TPP)做预处理。
Fish were also pretreated with piperonyl butoxide (PBO) or triphenyl phosphate (TPP) and then exposed to fenitrothion.
对山茱芡环烯醚菇总普和总三菇酸部分，用大鼠、小鼠糖尿病模型进行了降糖作用的药理实验，结果表明，二部分单用均有降糖作用，但合用效果更明显。
The pharmacological results revealed that both the active parts of iridoids and triterpenes acid had effects on decreasing blood glucose, though the joint use showed the better results.
二甲硫醚收率仅为1.46%，该三废可以回收利用，易于实现清洁生产。
The yield of dimethyl Sulfide is only 1.46%. The scrap can be reclaimed and reused. It is able to realize clean production.
以丙酮为溶剂，30％H2O2为氧化剂，两种体系催化苯甲硫醚氧化反应分别可以循环使用两次和三次，但产物亚砜的对映选择性很低。
The two catalytic systems can be recycled twice and three times, respectively, with very low enantioselectivities for the oxidation of phenyl methyl sulfide with 30% H2O2 as oxidant in acetone.
它们是乙烯，丙烯，异丁烷，环丁烷，丁烯类化合物三个，甲基乙基醚，乙基异丙基醚，乙酸乙酯。
Ten of them were identified. They are ethylene, propylene, isobutane, cyclobutane, three isomeric butenes, methyl ethyl ether, ethyl isopropyl ether, and ethyl acetate.
本发明公开了侧向二氟亚甲基醚桥键双末端烷基三联苯及其制备方法与应用。
The invention discloses side difluoro methylene ether bridged bond paired-end alkyl terphenyl, a preparation method and application thereof.
探讨促进剂NA 22硫化体系和三嗪硫醇（包括硫化剂AF和TCY）硫化体系对二元共聚氯醚橡胶（CHC）性能的影响。
The effects of the accelerator NA-22 curing system and triazine-mercaptan(including curatives AF and TCY) curing system on the properties of epichlorohydrin binary copolymer(CHC) were investigated.
五氟苯乙烯与三乙基硅烷、一氧化碳在八羰基钴催化下反应得一个位置和立体异体（ 五氟苯基烯基硅醚）的混和物。
The Co 2(CO) 8 catalyzed reaction of pentafluorostyrene with triethylsilane and carbon monoxide gives a perfluorophenyl enol silyl ether as a mixture of regio- and stereo-isomers.
五氟苯乙烯与三乙基硅烷、一氧化碳在八羰基钴催化下反应得一个位置和立体异体（ 五氟苯基烯基硅醚）的混和物。
The Co 2(CO) 8 catalyzed reaction of pentafluorostyrene with triethylsilane and carbon monoxide gives a perfluorophenyl enol silyl ether as a mixture of regio- and stereo-isomers.
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