| 1. | Earth - moving machinery - lift - arm support devices
运土机械.起重臂支撑设备 |
| 2. | Oil spill dispersant application equipment : boom and nozzle systems
漏油分散设备:起重臂和喷油嘴系统 |
| 3. | Dynamic analysis for derrick runway girder by finite element method
利用有限元法进行塔机起重臂的动态分析 |
| 4. | The repair welding process research for the push rod structure of the lifting arm
起重臂推压机构焊接修复工艺研究 |
| 5. | Machinery for forestry - log loader - location and method of operation of two - lever operator controls
林业机械液压起重臂双手把的操作位置和操作方法 |
| 6. | Earth - moving machinery . lift capacity of pipelayers and wheeled tractors or loaders equipped with side boom
土方机械.装有侧起重臂的铺管机轮式拖拉机和装卸机的提升能力 |
| 7. | Specification for continuous mechanical handling equipment - safety requirements - loose bulk materials : mobile suction pipes suspended from derrick jibs used in pneumatic handling
连续式机械装卸设备规范.安全性要求.第4部分:松散物料:气动装卸用起重臂下移动式吸管 |
| 8. | The article introduces development course of hoist boom of wheel crane , talking about technique characteristics during each stage , and it also introduces the most advanced technique about hoist boom
摘要论述了轮式起重机起重臂的发展历程，叙述了各阶段的技术特点，介绍了当前最先进的吊臂技术。 |
