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- aromatic cyclization of paraffins 脂族烃的芳构环化
- Candles are made of paraffin wax. 蜡烛是由石蜡做成的。
- cyclization of paraffins 烷烃环化
- PETROLEUM PRODUCTS. DETERMINATION OF NEEDLE PENETRATION OF PARAFFINS AND WAXES. 石油产品。石蜡和蜡针入度的测定。
- Study progress on cyclization of citronellal to(-)-isopulegol over catalysts is reviewed. 综述催化香茅醛环化为(-)-异胡薄荷醇的催化剂研究进展.
- The phenomonon was explained in view of the mechanism of chemical cyclization of poly(amic acid). 从聚酰胺酸化学环化反应机理出发对这一结果给予了解释。
- Selective cyclization of the biscarbanion of 1,1 bis(2 t butylsulfnylethyl) dodecylphenylsulfone (1) under the different conditions was investigated. 比较 1;1 双 (2 叔丁基砜乙基 )十二烷基苯基砜 (1)双碳负离子在不同条件下的环合反应结果 .
- Thirty-one cases of VH, 32 cases of VC, and 66 cases of SCC were retrospectively retrieved from blocks of paraffin. 共有31例的口腔疣状上皮增生,32例的疣状癌及66例的鳞状细胞癌,均为石腊包埋的档案材料。
- In the third step , dehydrating cyclization of 2-carboxyl-4'-ethoxylt riphenylamine result s in 3-ethoxyl-N-phenylacridone. 第三步2-羧基-4'-乙氧基三苯胺脱水环化生成了3-乙氧基-N-苯基吖啶酮。
- The study on intramolecular cyclization of polyisoprene is reviewed and dissussed. The trend of the cyclization of polyisoprene is suggested. 本文对目前聚异戊二烯环化反应的研究作了概述与讨论,提出了聚异戊二烯环化反应研究的方向。
- An intermediate-or mixed-base crude contains roughly equivalent mixtures of paraffins and naphthenes (cyclo-paraffins). 中间基或混合基原油所含石蜡烃和环烷烃的量大致相等;
- Using absolute alcohol as solvent,under the effect of NaOH,the 3,3-dibromomethyl oxetane (BBMO) was synthesized by the cyclization of 1,1,1-tribromomethly-1-hydroxymethyl methane. 以1,1,1-三溴甲基-1-羟甲基甲烷为原料,无水乙醇为溶剂,在NaOH的作用下经关环反应合成了3,3-二溴甲基氧丁环(BBMO)。
- Thirty-one cases of VH,32 cases of VC, and66 cases of SCC were retrospectively retrieved from blocks of paraffin. 共有31例的口腔疣状上皮增生,32例的疣状癌及66例的鳞状细胞癌,均为石腊包埋的文件材料。
- This paper presents applications of andes insynthesis of heterocyclic compounds.They include cyclization of azides, cycloaddition of andes, ringexpansions and contractions. 利用叠氨化合物合成杂环化合物的新方法,包括环化、环加成、扩环和缩环反应。
- In another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound. 对于硫醯亚胺与矽基酮的自由基反应,则是得到低产率的简单环化产物,而不是预期的烯醇矽醚化合物。
- Embeding The sealing of tissue prepared for permanent microscope slides in a solid block of paraffin wax prior to sectioning. 包埋:是在切片之前将组织密封在一小块石蜡中,以备显微镜永久切片之用。
- CM-A curing membrane is a new type curing agent of paraffin emulsion. The loss of water is 0.039g/cm2(ASTM Cl56-74). CM-A混凝土薄膜养护剂是石蜡乳状液类新型养护剂;水分损失量力0.;039克/厘米~2[ASTMC156-74]。
- Method: Technology of paraffin section and photomicrographic technique were used. 方法:石蜡切片技术及显微成像技术。
- When the mass ratio of paraffin wax/graphite equaled 4:1, the cooling effect was the best. 石蜡与石墨质量配比在4:1时,电池组冷却效果达到最佳。
- How can I persuade you of my sincerity? 我如何能够让你相信我的诚意?