单词查询
alkenes
美['ælkənz]，英['ælkənz]，
释义
「
」
n. 【化】链烯； 网络释义： 烯烃；烯类；烯烃类；
例句
This article reviews recent methods used in organic synthesis for the stereoselective reduction of alkynes to Z or E alkenes .
综述了在有机合成领域中，通过炔烃立体选择性还原制备Z-或E-烯烃的近期方法。
The photosensitized coupling reaction of halogenated aromatic compounds with arenes and alkenes is a key reaction in constructing C-C bonds.
卤代化合物的光敏化脱卤及与烯烃或芳烃的偶联反应是构建C-C键的重要手段。
A lower LHSV benefited the conversion of the alkanes, but a further decrease of LHSV would reduce the selectivity of the alkenes .
较低的空速有利于十二烷的转化，但进一步减小空速将造成十二烯的选择性明显降低。
Main ingredients : aloe, collagen, vitamins silicon-alkenes-alcohol.
主要成分：芦荟，胶原蛋白，硅烷醇，维生素等.。
There are 12 Terpenoids and alkenes compounds being main allelochemicals. It was 45. 04% of the total substances detected.
被认为是主要他感物质的萜烯类物质有12种，占挥发油总量的45.
As evidence, he points to studies showing that Alzheimer's patients have large amounts of type-2 alkenes in their brains.
他还出示了能够证明阿尔兹海默患者脑中含有大量2型烯烃的研究作为证据。
The synthesis and application of vinylic tellurides in stereoselective synthesis of alkenes were reviewed. 49 reference are quoted.
综述了近年来烯碲化合物的合成及其在立体选择合成中的应用。参考文献49篇。
But he disagreed with the argument that type-2 alkenes in the environment are part of the story.
但他不同意环境中的2型烯烃会导致阿尔兹海默症。
Alkenes have one or more double bonds between carbon atoms, where two pairs of electrons are shared.
链烯有一个或多个共价键，即碳原子分享两对电子。
Exposure to type-2 alkenes in the environment has already been linked with cancer, heart disease, and other problems.
科学家已经将癌症、心脏病及其他疾病与暴露在含有2型烯烃的环境里关联起来。
综述了在有机合成领域中，通过炔烃立体选择性还原制备Z-或E-烯烃的近期方法。
The photosensitized coupling reaction of halogenated aromatic compounds with arenes and alkenes is a key reaction in constructing C-C bonds.
卤代化合物的光敏化脱卤及与烯烃或芳烃的偶联反应是构建C-C键的重要手段。
A lower LHSV benefited the conversion of the alkanes, but a further decrease of LHSV would reduce the selectivity of the alkenes .
较低的空速有利于十二烷的转化，但进一步减小空速将造成十二烯的选择性明显降低。
Main ingredients : aloe, collagen, vitamins silicon-alkenes-alcohol.
主要成分：芦荟，胶原蛋白，硅烷醇，维生素等.。
There are 12 Terpenoids and alkenes compounds being main allelochemicals. It was 45. 04% of the total substances detected.
被认为是主要他感物质的萜烯类物质有12种，占挥发油总量的45.
As evidence, he points to studies showing that Alzheimer's patients have large amounts of type-2 alkenes in their brains.
他还出示了能够证明阿尔兹海默患者脑中含有大量2型烯烃的研究作为证据。
The synthesis and application of vinylic tellurides in stereoselective synthesis of alkenes were reviewed. 49 reference are quoted.
综述了近年来烯碲化合物的合成及其在立体选择合成中的应用。参考文献49篇。
But he disagreed with the argument that type-2 alkenes in the environment are part of the story.
但他不同意环境中的2型烯烃会导致阿尔兹海默症。
Alkenes have one or more double bonds between carbon atoms, where two pairs of electrons are shared.
链烯有一个或多个共价键，即碳原子分享两对电子。
Exposure to type-2 alkenes in the environment has already been linked with cancer, heart disease, and other problems.
科学家已经将癌症、心脏病及其他疾病与暴露在含有2型烯烃的环境里关联起来。