The spine has been theorized as a "protected" environment because it is not a synovial joint, has less range of motion, and different loading mechanisms than the hip or knee joint.
因为脊柱不是滑膜关节，它的活动度小，与髋关节和膝关节的载入机制不同，所以被理论化为一种不受影响的环境。
The data transform stage is separated, while provides data transform reuse mechanisms, who may save the rules and use its for extracting the daily incremental data, transform and loading;
将数据的转换阶段单独分离出来，同时提供数据转换重用机制，将那些可以重用的规则保存下来以便于日常增量数据的定时抽取、转换及加载；
This paper presents the main types and features of luffing mechanisms of goose neck jib lorry loading cranes and proposes design requirements for 304304 type luffing mechanism.
介绍了随车起重机变幅机构的主要形式和特点，提出304304型变幅机构在设计时的要求。
This paper presents the main types and features of luffing mechanisms of goose neck jib lorry loading cranes and proposes design requirements for 304304 type luffing mechanism.
介绍了随车起重机变幅机构的主要形式和特点，提出304304型变幅机构在设计时的要求。
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