重加权交互式多模型滤波
bidirectional positioning
重力称重式充填机
gravity gravimetric filling machine
重力翻板式堆肥装置
Gravity tipping composting device
重力飞溅式润滑系统
gravity splash lubrication system
重力活塞式取样管
gravity-piston type corer
重力平衡式舱口盖
gravity balanced hatchcover
重力式U型斜交桥台
Gravity U-shaped skew abutment