查询词典 friction ball

Centering ball：定心钢球

球叉 ball yoke | 定心钢球 centering ball | 三球销万向节 tripod universal joint

CHARGING FOUL：(带球)撞人 dead ball:死球

zone defense:区域防守,区域联防 | blocking foul:阻挡 buzzer:计时钟 | charging foul:(带球)撞人 dead ball:死球

ball check valve：落球式止回阀

旋启式止回阀 swing check valve, flap check valve | 落球式止回阀 ball check valve | 弹簧球式止回阀 spring ball check valve

ball check valve：止回球阀, 球形节流阀

balanced safety valve 平衡式安全阀(可变动背压) | ball check valve 止回球阀, 球形节流阀 | ball float valve 浮子阀, 浮球阀

tangram; Chinese puzzle：七巧板

背兜 back basket; pack basket | 健身球 fit ball; medicinal ball | 七巧板 tangram; Chinese puzzle

cloudburst process：钢球喷射法

钢球抛光机 steel ball polishing machine | 钢球喷射法 cloudburst process | 钢球式顶破强力试验 ball burst testing

ball and cocket joint：球窝接头

包装货物吊索 bale sling | 球窝接头 ball and cocket joint | 球窝联结器 ball and socket coupling

come into play play ball set the ball rolling：开始活动

开始实行 come into force | 开始活动 come into play play ball set the ball rolling | 开始被使用 come into use

fancy ball, costume ball：化妆舞会

午餐会 luncheon party | 化妆舞会 fancy ball, costume ball | 纪念宴会 commemorative party

deep ball：深球

low volley 低截球 | deep ball 深球 | heavy ball 重球

cornuted：有角的

cornute 角状的 | cornuted 有角的 | Cornwall 康沃尔

wind on portside：风吹于左舷

wind off 展开 | wind on portside 风吹于左舷 | wind power installation 风力设备