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BIM technology can add time dimension to three-dimensional space model to carry out 4D simulation construction, which is conducive to the optimization of construction period. Based on BIM technology, 4D simulation construction can put forward a virtual construction scheme, which can pre-process various possible induced situations in the construction. The application of BIM technology in the construction stage can reduce possible errors in the process of information transmission and reduce rework.　　另一方面，淙与昔日同学莲（郭可盈饰）于感情上遭逢连番波折。莲嫁入豪门却仍深爱淙，但道德规限令二人无法在一起。后莲离婚重遇淙，究竟有情人能否终成眷属？1948年初冬的北平，守城的国民党108师副师长田子恩接到密命，在北平主要的名胜古迹附近全部开掘出地道或暗室，并提前埋装炸药。北平一旦失守，同时引爆。……到时候，共产党接收的将是一座死城。往中对他产生了好感，但周伯勋的行踪却显得十分神秘……There is no conflict between the network firewall and the host firewall. It can be understood that the network firewall is mainly outside (collective) and the host firewall is mainly inside (individual).　　返港后，金刚寻求侦探光头佬（麦嘉 饰）的帮助，谁知黑帮尾随而至，虏走光头佬的妻子贺警司（张艾嘉 饰）作人质。为救爱妻，光头佬带着儿子，协同金刚赶至纽西兰……他想起王离所部是西北边军，没什么与叛军交手的经验，王离对项羽的了解也十分有限。