较低的安装能力和机械效率是95 %以上。
Lower installed capacity and mechanical efficiency is over 95%.
工程部在北京负责电梯的安装工程，下设八个安装大队，年安装能力达到400余台。
Engineering in Beijing, responsible for the installation of elevators, installation consists of eight brigades, the annual installed capacity of 400 sets.
除了地震保护、安装成本低比较传统的伸缩缝考虑空间较小的必要性和修复点和嵌套的安装能力。
In addition to seismic protection, installation cost is lower comparing to conventional expansion joints considering lesser need for space and fixing points and ability for nested installations.
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