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- Gravity ball check may be converted for air or gas venting by replacement of standard ball with floater PP ball. 通过用漂浮的PP球更换标准球，重力球形止回阀可以改造为适用于空气或气体排气口。
- Full Cartridge Replacement Kits are available for all True Union style ball valves and ball check valves. 对于所有真活接类型球阀和球体止回阀，可提供完整的更换筒组件。
- Ball Check valves MUST be installed with the valves FLOW arrow pointing in the direction of flow. 安装球体止回阀时必须使阀体上的流向箭头指向流体流向。
- General Installation Information: Ball check valves may be installed in either horizontal or vertical position. 一般的安装知识：球体止回阀可以安装在水平或垂直位置。
- Pacific Valves' unique injector has a double ball check protection against leakage and a positive shut-off internal valve. 美国太平洋阀门独特的注入器具有双球止回保护，防止泄露，并保护阀门内部活动部件。
- Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation - with seat up. 重力球形止回阀可以变为通风阀,只需用漂浮球体更换标准球体,然后在安装时将阀门倒置,使其阀座向上即可。
- Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation?with seat up. 重力球形止回阀可以变为通风阀，只需用漂浮球体更换标准球体，然后在安装时将阀门倒置，使其阀座向上即可。
- Gravity ball check valves are converted to foot valves by replacing the union nut and end connector on the receiving end ? seat end ? of the body with an F.V. screen housing assembly. 重力球形止回阀可以变为底阀，只需在接受端口-阀体的阀座端口，用一个F.;V
- The plumber made a careful check of the pipes. 管子工对管道做了仔细的检查。
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- In cricket, the ball is delivered overarm. 打板球时，要举臂过肩掷球。
- Sunday is the best day to check the want ads. 星期天是在报纸上查寻招聘广告的最好的日子。
- Children love to ball snow up in their hands. 小孩子们喜欢将雪在手里做成球儿。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- She came out of her room equipped for the ball. 她盛装从房里出来预备到跳舞会去。
- The loss of the ball game stir up much feeling. 球赛输了引起了极大的愤慨。
- Have you got any rain check for the following game? 你拿到下一场球的免费票了吗？
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
- It always pays to give your paper one final check. 写了东西最后检查一遍总是有好处的。
- Smith tied into the ball for a home run. 史密斯猛击球取得本垒打。
