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- The EAG responses to 6 methyl 5 hepten 2 one, E 2 hexenol and methyl salicylate were significantly different between alate and apterous adult aphids of S. avenae. 麦长管蚜的有翅和无翅成蚜对 6 甲基 5 庚烯 2 酮、反 2 己烯醇和水杨酸甲酯的反应差异显著 ;
- EAG responses of S.avenae to methyl salicylate, E 2 hexenal, E 2 hexenol, 6 methyl 5 hepten 2 one, 6 methyl 5 hepten 2 ol, and R. padi to methyl salicylate, E 3 hexenyl acetate, 6 methyl 5 hepten 2 one, 6 methyl 5 hepten 2 ol were stronger. 结果表明 :麦长管蚜对水杨酸甲酯、反 2 己烯醛、反 2 己烯醇、 6 甲基 5 庚烯 2 酮和 6 甲基 5 庚烯 2 醇的反应较强 ,禾谷缢管蚜对水杨酸甲酯、反 3 己烯乙酸酯、 6 甲基 5 庚烯 2 酮和 6 甲基 5 庚烯 2 醇的反应较强 ,并得到了剂量反应曲线。
- Thus, treatment of 4 - pentenals with methoxy methylenetriphenylphosphin afforded a mixture of cis - and trans - enol ethers, which were oxidized by PCC to give methyl 5 - hexenates. 用甲氧基甲基三苯基膦处理4-戊烯醛类化合物生成烯基醚,PCC氧化所生成的烯醚则得到标题化合物,5-己烯酸甲酯类化合物。
- Keywords 6 methyl 5 hepten 2 one;dehydrolinalool;acetylene;ammonia; 6甲基5庚烯2酮;脱氢芳樟醇;乙炔;液氨;
- Keywords isoprene;6 methyl 5 heptene 2 one;addition reactor;design; 异戊二烯;甲基庚烯酮;加成反应器;设计;
- Keywords methyl 5 pyrazolone;ethyl acetoacetate;hydrazine hydrate;synthesis; 甲基-5-吡唑酮;乙酰乙酸乙酯;水合肼;合成;
- These fish vary in weight from 3 lb to 5 lb. 这些鱼的重量从3磅到5磅不等。
- The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
- Many children under 5 go to nursery school. 5岁以下的许多儿童都上幼儿园。
- Meals average out at 5 per head. 膳食平均每人5英镑。
- Children under 5 can travel for nothing. 5岁以下儿童可免付旅费。
- Even the cheapest was priced at 5. 即使最便宜的也标价5英镑。
- The liquid was 5 litres in volume. 该液体的体积为5升。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- The winning time was 1 minute 5 seconds. 获胜的时间是1分零5秒。
- I found a 5 note on the pavement. 我在人行道上捡到了一张5英镑的纸币。
- He is 5 centimeters taller than her. 他比她高5公分。
- Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
- He is 5 centimetres taller than her. 他比她高5公分。
- He made an offer of$5 for the old bike. 他出价5美元买这辆旧自行车。