Specification for continuous mechanical handling equipment - safety requirements - loose bulk materials : hand - operated power shovels 连续式机械装卸设备规范.安全性要求.第8部分:松散物料:手动机械铲
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" there you are ? like a knife through butter " said the demonstrator as the powered shovel swung back with its load 当装满泥土的挖土机转回来时,操作示范员说: “你瞧,就像拿刀子切黄油块一样,十分容易。 ”