词汇	derrick heel eye
释义	derrick heel eye 🌏吊杆叉头
随便看	danger coefficient method danger-coefficient method danger coefficinet danger cone danger control danger control and reinforcement danger control process danger degree danger degree assessment danger detection Danger do not enter danger dose dangered dangered-off area danger effect danger effects DangerElectrical hazard danger eliminating and reinforcement danger eliminating and reinforcing danger-eliminating and reinforcing danger-eliminating and reinforcing design danger-eliminating and reinforcing project danger elimination danger elimination and reinforcement danger-elimination and reinforcement