ball check
短语词组
- ball resolver check 球形分解器检查
- ball -check nozzle 球式止逆注嘴
- dual ball check valve 双球止逆阀;翻译;双球止逆阀英语
- ball check nozzle 球形止回喷嘴;翻译
- drain ball check 排放球阀
- parking brake ball check 停放制动器球阀
- oil ball check valve 机油泵单向球阀
- ball check valve hour 球止回阀壳体
- Dinging ball check 钢球敲击检查;钢球敲击查抄 返回 ball check