1. Pipe production line: Double wall Metal Reinforced Spiral Corrugated Pipe production line Double wall corrugated pipe, Steel plastic composite pipe and PE pipe and HDPE spiral pipe production line. 管道类——钢骨架增强缠绕波纹管、大口径双壁波纹管、钢塑复合管以及实壁或结构壁聚乙烯管成套生产设备。
2. Waste draining pipe, offlet or drain pipe should be connected to the main pipe; each pipe should connect two valves with the most possible short valve-to-valve pipe length. 排污管、放水管或疏水管应分别连接到各自的总管上，每管均应串接两个阀门，两阀门间的管段应尽量缩短。
3. HDPE pipe used for lining is penetrated into a concrete pipe then it forms pipe-in-pipe structure so as to raise pressure bearing capacity of the concrete pipe. HDPE管具有强度高、耐腐蚀、使用寿命长、管壁光滑、不结垢等优点，内衬HDPE管可与混凝土管形成整体性良好的管中管结构，使混凝土管承压能力大大提高。
4. New progress in organ preservation field, including organ preservation solution, ischemia reperfusion injury and organ cloning, was described mainly. 本文着重介绍了器官保存领域的3大进展器官保存液、缺血再灌注损伤对移植肾的损伤以及克隆器官。
5. In a given organ, the endopolyploidiza-tion level was raised in the progress of the organ development. When the organ was up to maturity its endopolypoidization level tended to be stable. 在给定的组织器官中内多倍化水平随该器官的发育进程而提高， 当器官成熟时， 内多倍化水平也趋于稳定；
