... 爪子进退（右）pincer’s back & fore(right) 撑台supportor 后帮扫刀wiper of heel lasting ...
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supportor & sale 这里的技术支持兼销售
supportor pull back 撑台拉到位
supportor down slowly 撑台慢下
portal supportor method 门式支架法
travelling cable supportor 随行电缆架
low pressure of supportor 撑台低压
The portal supportor system is emphasized which is formed of bailey beam and steel pipe support.
着重介绍了施工中由贝雷梁和钢管支柱构成的门式支架支撑系统以及理论检算和挠度计算。
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