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mcdonald方法
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  “mcdonald方法”译为未确定词的双语例句
     2-Pentyl-,2-(p-methyl-phenyl)-,and 2-methyl2-phenyl-2,3-dihydrofurans were successfully prepared by using Et_3N·Mo(CO)_5 catalyst.
     利用McDonald方法,制备了2-戊基-、2-(对-甲基)苯基-以及2-甲基-2-苯基-取代2,3-二氢呋喃化合物.
短句来源
     confusum, the orders were: adults>larvae>eggs>pupae. By McDonald's method, α-pinene obviously dispersed T.
     据McDonald方法测定:α-蒎烯对杂拟谷盗成虫有明显的驱避作用.
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  相似匹配句对
     [Method]
     [方法]
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     Methods1 Construct
     方法
短句来源
     McDonald.
     McDonald的结果。
短句来源
     The Research About the Microcontroller of McDonald's Bread Machine
     McDonald’s面包机控制器的研究
短句来源
     This paper is based on the BEER model presented by McDonald.
     本研究的理论基础是McDonald提出的BEER模型。
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The effects of α-pinene for controlling T.confusum, S.zeamais etc. sevsn stored grain insects were tested in laboratory. The results indicated that if concentration was over 50ppm, the effects of α-pinene on fumigating the beetles were very good and the strength depended on the concentrations of α-pinene, the mortality rate droped with a decline in the concentration. The sensitivity of different stored grain ins- ects against α-pinene were different and sensitivity orders of seven stored grain beetles against...

The effects of α-pinene for controlling T.confusum, S.zeamais etc. sevsn stored grain insects were tested in laboratory. The results indicated that if concentration was over 50ppm, the effects of α-pinene on fumigating the beetles were very good and the strength depended on the concentrations of α-pinene, the mortality rate droped with a decline in the concentration. The sensitivity of different stored grain ins- ects against α-pinene were different and sensitivity orders of seven stored grain beetles against α-pinene were: C.pusillus>T.ferrugineus >T.confusum>R.dominica>S.zeamais>T.canstaneum>O.surinamensis.The sensitivity of different stages of stored grain insects against α-pinene were different for T.confusum, the orders were: adults>larvae>eggs>pupae. By McDonald's method, α-pinene obviously dispersed T.confusum adults. The results of simulating experiment indicated that the effects of α-pinene for controlling stored grain insects were much better in wheat than in maize and rice, and worst in rice. If concentrations were over 50ppm, the effects of α-pinene for controlling S.zeamais, T.confusum were better in wheat and if concentration was over 100ppm, the effects were very good. At 100ppm, effects of α-pinene for controlling S.zeamais, T.confusum were not very good in maize but no effects in rice at the same concentration.

本试验测定了α-蒎烯对玉米象、杂拟谷盗、谷蠹、赤拟谷盗、锯谷盗等7种主要储粮害虫的实验室防治效果,结果表明:如果浓度高于50ppm,α-蒎烯对7种甲虫有很强的熏杀作用,其作用强度受浓度左右,死亡率随浓度降低而下降.不同甲虫对α-蒎烯的敏感性不同,7种甲虫的敏感性顺序是:长角扁谷盗>锈赤扁谷盗>杂拟谷盗>谷蠹>玉米象>赤拟谷盗>锯谷盗.储粮甲虫的不同虫态对α-蒎烯的敏感性不同,就杂拟谷盗而言,顺序是:成虫>幼虫>卵>蛹.据McDonald方法测定:α-蒎烯对杂拟谷盗成虫有明显的驱避作用.模拟试验结果说明:α-蒎烯在小麦中的杀虫效果比在玉米和大米中要强得多,而在大米中的效果又最差.如果浓度高于50ppm,在小麦中对玉米象和杂拟谷盗有较好的熏杀效果,如果浓度高于100ppm,则效果很理想.在100ppm浓度下,α-蒎烯在玉米中对玉米象和杂拟谷盗有一定的杀虫效果,而在大米中,几乎失去了杀虫作用,这可能是大米对α-蒎烯的吸附较强所致.

2-Pentyl-,2-(p-methyl-phenyl)-,and 2-methyl2-phenyl-2,3-dihydrofurans were successfully prepared by using Et_3N·Mo(CO)_5 catalyst.The condition of the reaction is mild,the work-up is simple.This method can be applied to the synthesis of a large number of endocyclic enol ethers.

利用McDonald方法,制备了2-戊基-、2-(对-甲基)苯基-以及2-甲基-2-苯基-取代2,3-二氢呋喃化合物.实验表明,此种方法反应条件温和,后处理简单,适用范围广,可用以合成大量环内烯醇醚.

 
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