gravity nut重心铊
gravityn.重力;庄重;严重;严肃
gravity ammeter重力式安培计
gravity casting重力浇注
gravity sampler重力岩芯取样器
gravity network重力网
gravity settler重力沉降槽
gravity haulage重力运输
gravity froster重力流动式冻结机
gravity gliding重力滑动
gravity abscess流注性脓肿
gravity storage重力能积聚