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.
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.
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.
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.
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.
首先创建维度的主键到伪事实键的连接。
Initially create a join from the dimension's primary key, to the fake fact key.
示例使用id列作为连接键。
第三部分：城市公共空间整合中连接键的设计原则和方法。
The third part: City public space join design principle and method of key in combining.
第三部分：城市公共空间整合中连接键的设计原则和方法。
The third part: City public space join design principle and method of key in combining.
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