查询词典 methyl

Various overlay mediums, such as agar, starch gel, methyl cellulose and tragacanth are used

常用的覆盖培养基有：琼脂、淀粉凝胶甲基纤维素和黄蓍胶等。

And the acid-induced cross-linking reaction of phenol-aldehyde resin/hexamethaoxy methyl triazine has also been tested successfully.

对所研究生酸体系引发酚醛树脂/六甲氧基甲基三聚氰胺交联反应的能力进行了初步研究。

In the derivatives of 2-(4-bromobenzyl-amino)-4-methyl-6-trifluoromethyl-1, 3, 5 triazine, the atoms of N(8), C (9) were the important active parts, it was considered to bind to the different amino acid residue at the D1 protein as traditional striazine herbicides.

对于2-（4-溴苄氨基）－4-甲基－6-三氟甲基－1，3，5-三氮苯中，N(8)和C(9)是重要的活性部位，和传统的均三氮苯类除草剂分子相比，与D1蛋白上不同的氨基酸残基发生了键合作用。

This paper introduced the quantitative analysis method of kresoxim-methyl technical by gas chromatography with HP-5 capillary column and using triphenyl phosphate as internal standard.

介绍了醚菌酯原药样品的气相色谱定量分析方法，选用HP - 5石英毛细管柱，以磷酸三苯酯为内标物，进样口和检测器温度均为 2 5 0℃，柱温为 2 30℃，对醚菌酯原药进行测定。

Triphenyl phosphite provided prominent stabilization only when used in combination with other stabilizers. Good results have been obtained for both polyether-urethane and nitrate esters when using 2,6-di-t-butyl-4-methyl-phenol as stabilizer.

亚磷酸三苯酯单独使用时效果较差，但与其它种类的稳定剂混合使用能得到较好的效果。2，6-二叔丁基-4-甲基酚对硝酸酯和聚氨酯粘结剂均具有良好的稳定作用。

Methods The antimicrobial peptides of housefly larvae were induced largely by infection and injury, which were isolated and purified by trituration, centrifugalization and column chromatography. Then the antimicrobial peptides with anti-Toxoplasma activity were sieved by methyl thiazolyl tetrazolium colorimetric method and haemacytometry. The DNA contents of T.gondii tachyzoites were detected by flow cytometry.

通过损伤加感染的方法诱导家蝇幼虫大量表达抗菌肽，然后经过研磨、离心和层析等过程，分离纯化并筛选出抗弓形虫作用的抗菌肽，采用流式细胞术分析其对弓形虫速殖子DNA含量的影响。

Eleven molecular tweezer artificial receptors based on deoxycholic acid have been synthesized by using solid K2CO3 as supporter through the reaction of methyl deoxycholate with aroyl chloride in solvent-free conditions under microwave irradiation, five of which are new compounds. The structures of all the molecular tweezers were characterized by 1H NMR, IR, MS spectra and elemental analysis.

在微波辐射无溶剂条件下，以固体K2CO3为载体，脱氧胆酸甲酯与芳酰氯反应合成了11个脱氧胆酸分子钳人工受体，其中5个为新化合物，所有化合物的结构均经1H NMR， IR， MS及元素分析所确证。

Some preparation methods of galanthanime including extraction and organic synthesis were summarized, such as extraction from narcissus, galanthus woronawii losink, and lycoris radiate and countereurrent chromatography refining, and enzymatic extraction from hyacinths orientalis, as well as the organic synthesis using 3,4-dimethoxybenzaldehyde, methyl 3,4,5-trihydroxybenzoate, isovanilin and tyramine as raw material.

概述了加兰他敏从黄水仙、沃氏雪花莲中提取、石蒜中提取及逆流色谱法精制、喇叭水仙酶法中提取的方法、工艺；以3，4-二甲氧基苯甲醛、3，4，5-三羟基苯甲酸甲酯和异香草醛和酪胺为起始原料合成加兰他敏的方法。

The dissipation rate constants of malathion and methyl parathion with a concentration of 3mg/L and ethion, dicofol and cyhalothrin with a concentration of 0.5mg/L in 2000ml of 55-60g canna planted water sulution were respectively increased by 77. 66％, 117. 44％, 64. 80％, 38. 11％ and 15. 35％ compared to those in unplanted water solutions.

与不种植植物的对照相比，50-60g美人蕉对2000ml分别含有3mg/L的马拉硫磷、甲基对硫磷及0.5mg/L乙硫磷、三氯杀螨醇和三氟氯氰菊酯培养液中的马拉硫磷、甲基对硫磷、乙硫磷、三氯杀螨醇和三氟氯氰菊酯的消解速率依次分别提高了77.66％、117.44％、64.80％、38.11％和15.35％。

In DMSO, the polymerization of methyl methacrylate could be carried out efficiently. However the photopolymerization was inhibited in acetonitrile. It was ascribed to the complex formed between coumarin 1 and HTIB photolyzed to unreactive species after irradiation in acetonitrile.

在一般极性溶剂中如DMSO中能有效地引发甲基丙烯酸甲酯光聚合，而在电子受体性质的极性溶剂如乙腈中，光聚合反应受阻，这归结于香豆素1与羟基苯基碘鎓盐形成络合物，使得光反应后生成不具活性的产物。

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。