Experimental research shows that , the designed main mechanism is reasonable ; swimming velocity varies with the frequency exerted on ; steering motion can by realized by changing the frequency f , and f2 of control power which exerts on two pzt . finally 实验结果表明： （ 1 ）液体中微机器人的主体结构设计是合理的； （ 2 ）通过改变电源频率可控制微机器人的泳动速度。
Against with the tower body which is main structure of construction hoist ’ is made of many bar , adopting the finite element analysis software sap84 to analyze the distortion and force condition of the tower body when the construction hoists works 针对由众多杆件组成的施工升降机的主体结构塔身,采用有限元分析软件sap84对其在工作过程中的变形及应力情况进行了分析。
Designed by swiss architecture firm herzog and de meuron , global engineering consultant arup and china architecture design and research group , the national stadium is located on the north fourth ring road in beijing 这也标志着国家体育场终于由图纸上的构想变为一个伟大的建筑物。国家体育场主体结构分成两个部分，即混凝土框架结构和钢结构，混凝土结构被钢结构罩在里面。
In view of there is notable difference between weld line and main structural material on microstructure , at the same time , its mechanical capability is affected by manufactured techniques greatly and its mechanical status is more complex 由于钢结构焊缝与主体结构在微观结构上存在显著差异，其力学性能也极大地受加工工艺的影响，并且受力状态复杂，因此更容易发生损伤。
Floors were plate with the main structure ( beam ) link , the length of anchor support should comply with the design requirements and should be less than 50 mm , will be a reliable link anchor pieces , location should meet the design requirements 组合楼板中压型板与主体结构（梁）的连接，其锚固支承长度应符合设计要求且应小于50 ? ，端部锚固件连接应可靠，设置位置应符合设计要求。
The strong housing and main components provide fire resistant , waterproof , and quakeproof while protecting splices during pulling , torsioning and impacting . it ensures long - term reliability and usage under ambient temperature from - 40 to 65 坚固的光缆接头盒外壳及主体结构件，能起到阻燃防水防震作用，同时对光缆接头的拉伸扭曲撞击等起保护作用，并能在- 40 65自然环境下长期使用
The research shows that the structure of agricultural investors has changed in institutional changes . traditional government ' s dominating agricultural investment system has already transformed into the folk dominating one which is mainly peasants 研究表明制度变迁下农业投资主体结构发生了变化，传统的政府主导型农业投资体系已逐步转变为以农户为主体的民间主导型农业投资体系。
The strong housing and main components provide fire resistant , waterproof , and quakeproof while protecting splices during pulling , torsioning and impacting . it ensures long - term reliability and usage under ambient temperature from - 40 to 65 坚固的光缆接头盒外壳及主体结构件，能起到阻燃防水防震作用，同时对光缆接头的拉伸扭曲撞击等起保护作用，并能在- 40 65自然环境下长期使用。
The strong housing and main components provide fire resistant , waterproof , and quakeproof while protecting splices during pulling , torsioning and impacting . it ensures long - term reliability and usage under ambient temperature from 40 to 65 坚固的光缆接头筒外壳及主体结构件，能起到阻燃防水防震作用，同时对光缆接头的拉伸扭曲撞击等起到保护作用，并能在- 40 65自然环境下长期使用。
