Adhesion can provide continuous joint which is useful to reduce the structure weight.
胶接能够提供连续的面连接，有利于减轻结构重量。
In order to reduce the weight of an aerial telescope main structure, a topologic optimization design method of the aerial telescope main frame was presented.
针对某航空望远镜主结构的重量过高的问题，提出了对航空相机望远镜主框架进行拓扑优化设计的方法。
Rotating and up-down swinging of the ram for TJ-18 groundcharger are hydraulically driven, which can reduce the weight of equipment, make structure contact and be convenient to operate.
TJ-18型地面加料机其挑杆回转运动与上下摆动运动采用了液压传动，设备重量轻，结构紧凑、动作灵敏、操作方便。
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