甲基苯丙胺以右旋和左旋两种对映体形式存在。
Methamphetamine exists as two enantiomers, dextrorotary and levorotary.
研究了重氮烯氢向前手性烯烃单侧的非对映选择性转移。
Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.
第一部分描述了通过非对映选择性炔丙基化合成天然产物。
The first part describes the syntheses of natural products by means of diastereoselective propargylation.
对转酮醇酶在工业上的应用，例如对映体化学物质进行了审查。
The application of transketolase for industrial purposes, such as enantiotopic chemicals were reviewed.
还可以根据需要指定对映像的访问。
对映射的全面测试覆盖极为重要。
Thorough test coverage of the mapping is of Paramount importance.
创建名称空间前缀和URI对映射。
她还对映射地址状态的方式进行了更改。
She also makes a change to the way the address status is mapped.
内核在配置开始时对映像进行反串行化处理。
The kernel deserializes the image when the configuration is started.
诀窍就是使用相对路径而不用绝对映射路径。
The trick is to use a relative path instead of the absolute map path.
通过对映射使用条件，可以控制映射的逻辑流。
Using conditions on mappings allows you to control the logical flow of the mappings.
不是对映异构体的非对映异构体也属于这一类。
Diastereomers that are not enantiomers also fall into this category.
对映射节点中可以选择使用的解析器也进行了扩展。
The choice of parsers you can use with the mapping node has also been extended.
手性药物对映体具有不同的药理活性和不同的用途。
The enantiomer of some chiral drugs has different pharmacology activity and different applying.
这些转换根据给定的XPath表达式条件对映射进行分组。
These transformations group a set of mappings based on a given XPath expression condition.
在创建映射时，最好定期对映射进行测试，以确保实现了所需的结果。
While creating a map it is a good idea to test the map periodically to ensure that the desired results are being achieved.
MapReduce的优点是它允许对映射和缩减操作进行分布式处理。
The advantage of MapReduce is that it allows for the distributed processing of the map and reduction operations.
换言之，她对映射所做的更改不会被删除，这与她接受更改时的情况一样。
In other words, her change to the map won't be deleted, which would have been the case if she had accepted the change.
由于这两个版本之间的种种差异，我们建议您在完成迁移后对映射进行测试。
Because of this and other differences in the two versions, we recommend that you test the maps after migration.
这些组分对映于XML文件的节点，连续的组分匹配嵌套的Element。
These components map to the nodes of an XML document, with successive components matching nested elements.
拆分采用非对映异构体拆分方法，在有机溶剂中用酒石酸为拆分剂，得到S型。
Resolution of the use of non-resolution of enantiomers methods used in organic solvents tartaric acid for the separation agent, to be S-type.
相互有关的立体异构体作为对映异构体具有相同的连通性，但相互是非重叠镜像。
Stereoisomers related to each other as enantiomers have the same connectivitybut are non-superimposable mirror images of each other.
除了提供备份之外，私有映像会记录对映像的所有软件安装和配置，可以节省时间。
In addition to providing a backup, private images will save time by recording all the software installation and configuration for your image.
外部映射文件使开发人员能够定制数据映射，从而获得对映射派生方式的更多控制。
The external mapping file enables developers to customize the data mapping and thereby gaining more control over the way mapping can be derived.
通过这种方法，生成的构件从一开始就知道对映射文件的更改，而您不必更改它们。
This way the generated artifacts will be aware of the changes to the mapping file from the beginning, and you won't have to change them.
JPA规范定义了对映射继承的三种类型的支持；其中只有一种在当前规范中是强制的
The JPA specification defines three types of support for mapping inheritance; only one is mandatory in the current specification
如果使用字符映射，则首先考虑是否对映射字符进行规范化，还是对映射后的字符规范化。
If character mapping is used, then first consider whether you want to apply normalization to the character being mapped, or apply normalization after the character is mapped.
除了预定义的字段外，通过对映射定义定制属性，您还可以向扩展映射添加额外的定制字段。
In addition to the predefined fields, you can add extra custom fields to the extension mappings by defining custom attributes on the mappings.
有关如何做到这一点的详细信息，请参阅本文后面的部分创建名称空间前缀和URI对映射。
For more details on how to achieve this, refer to the later section of this article, Creating namespace prefix and URI pair mappings.
有关如何做到这一点的详细信息，请参阅本文后面的部分创建名称空间前缀和URI对映射。
For more details on how to achieve this, refer to the later section of this article, Creating namespace prefix and URI pair mappings.
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