这种分子是由一群化学键连接而成的原子。
A molecule is a group of atoms held together by chemical bonds.
传动齿轮免键连接，保证长期印刷精度。
Transmission gears are joined together with no bonds, which ensures long-term printing precision.
结构独特、无键连接、高铬板锤、独特的反击衬板；
Special structure, keyless connection, high-chromium plate hammer, particular impact liner;
传动装置连接全部采用无键连接，拆卸简单，维修方便。
Transmission device all adopt no key links, disassembled, convenient maintenance.
聚酯：单体之间以酯键连接而形成的一类聚合物，为有机化合物。
Polyester: Organic compound, any of a class of polymers formed by ester linkages between monomers.
与此类似，如果两张表通过一个外键连接起来，我们也称其为连接的。
Similarly if two tables are connected via a foreign key, they are connected.
这样制备的吸附剂的性质与承载共价键连接鳌合官能团材料的性质相同。
Thus-prepared sorbents possess the properties of materials bearing covalently-bonded chelating functions.
并列而排的转移rna阅读邻近的密码子，带来氨基酸并将其以共价键连接起来。
Juxtaposed tRNAs, reading adjacent codes, bring together amino acids, which are then covalently joined to together.
机械地说，我们记忆信息的能力可以归结为大脑中神经元之间连接的强度，神经元通过神经键连接。
Mechanically speaking, our ability to recall information comes down to the strength between neurons in our mind, which are connected by synapses.
以化学键为基础建构了键连接性指数及分子键连接性指数，该指数同时考虑顶点原子的化学特征及键的性质。
The bond connectivity topological index s I based on chemical bonds is defined and the molecular index s is formed by s I according to the properties of the top atoms and their bonds on the study.
真菌多糖是从大型食用菌的子实体和菌丝体中分离的由10个以上的单糖通过糖苷键连接而成的高分子多聚物。
Fungi polysaccharides were isolated from the fruiting body and mycelium of the large edible fungus, which were polymers linked by more than 10 monosaccharides through glucoside keys.
完成了6个由不同形式抗剪连接键连接的钢管混凝土边框与剪力墙组合节点在低周反复荷载下的抗震性能试验。
Systemic experimental research on 6 different composite connections between concrete filled steel tube columns and shear wall under low cycle reversed loading have been done.
将组氨酸以共价键连接到酰氯化的聚丙烯酸分子网络上，设计合成作为智能高分子催化剂的聚丙烯酰胺支载咪唑基化合物。
A polyacrylate supported imidazole group, as an intelligent polymer catalyst, was designed and synthesized by linking of polyacrylate chloride with histidine in covalent bond.
线形-树状体杂化嵌段共聚物是由树枝状高分子嵌段(d)与线形高分子链(L)通过化学键连接而成的一类特殊拓扑结构的共聚物。
Linear-dendritic hybrid copolymers are a special type of copolymers composed of both dendritic (d) and linear polymer blocks (l) which are linked together by covalent bonds.
按了几个键后，丽贝卡连接上了她在自由航空公司的电脑。
With a few keystrokes, Rebecca was connected to her computer at Liberty Air Service.
键之间的连接行已经没有了，因为现在关系已经是一个复杂的表达式，而不是在查询主题之间连接项目那么简单。
The link line is no longer there between the keys since the relationship is now a complex expression that goes beyond linking items from one query subject to another.
创建一个外键，以便将这个新表与已有的雇员表相连接。
Create a foreign key to link this new table with the existing employee table.
为了帮助实现这一目的，要设置有线等效加密(Wired EquivalentPrivacy,wep)键，以检测您可以连接到的接入点。
To help with this, set up the Wired Equivalent Privacy (WEP) key to detect an access point that you can connect to.
用时间戳、惟一键和连接时间在transtimes表中创建一个新行。
Create a new row in the transtimes table with timestamp, unique key, and connect time.
输入您想要连接到的分区编号，并按enter键。
Enter the number of the partition you want to connect to, and press the Enter key.
例如，输入connect后按回车键，您将看到用于连接MongoDB数据库的源代码。
For example, type connect and hit the return key, and you will see the source code used to connect to a MongoDB database.
对于被合并的表的分区键内的每列，必须存在一个同等连接的谓语。
For each column in the partitioning key of the joined tables, an equijoin predicate must exist.
需要按分区键进行连接的表应该有相同数量的分区，并且应该在相同的值上断开。
Tables that will be joined on the partitioning key should have the same number of partitions and should break on the same values.
是否有一个规范来描述连接键实体(例如客户和位置)的业务规则？
Is there a specification describing the business rules to join key entities such as customer and location?
因此，任意键通常可以更快地执行连接。
Therefore, arbitrary keys will generally perform joins faster.
分区键应该包括最常连接的列。
The partitioning key should include the most frequently joined columns.
丢失连接谓词，只在定义了外键的情况下。
Missing join predicates, but only if a foreign key is defined.
性能的提高取决于连接键被下推时所在维度表的过滤选择度。
The performance improvement depends on the selectivity of the filter on the dimension table from which the join keys are pushed down.
性能的提高取决于连接键被下推时所在维度表的过滤选择度。
The performance improvement depends on the selectivity of the filter on the dimension table from which the join keys are pushed down.
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