grout angle 地坎支架支撑角钢 grout channel 地坎支架支撑角钢 GRP(glass reinforced plastics) 玻璃丝加强塑料 grub screw 平头螺丝 GSP(group supervisory panel) 梯群监控 GTR(giant transistor) 大功率晶体管 guarantee period 保修期 guaranteed leaking load of rope 钢丝绳许可漏去负载 guard 护板,防护 guard ...