When opening, carrying or installing it, please use block and tackle, chain block, fork lift truck or other assistant devices.
在开箱·搬运·安装时，请使用吊滑轮，起重机，叉式升运机等辅助设备。
2
In order to tackle with the problems coming up with the structural adjustment of industry chain, this paper proposes a concept of industry chain nodes and describes the enterprise process.