Every time you created a new type that supported export , you would need to create a new type check.
每次创建支持export的新类型时，就需要创建一个新类型检查。
For example, in Jam, the programmer is not allowed to pass this as an argument to a method; there is no way to type check such calls.
例如，在Jam中，禁止程序员将this作为参数传递给方法；无法对这样的调用进行类型检查。
Swing-type check off er the least pressure drop and offer simple automatic closure; when fluid flow stops gravity and flow reversal closes valve.
旋启式止回阀压降最小，能够完全自动关闭，即在介质流动停止、重力和介质倒流的状态下自动关闭阀门。
It can be used in pipe installation buffer type check valve or pump motor use frequency converter and method of soft starter control to reduce the water hammer effect.
可以采用管道安装缓冲式逆止阀或者水泵电机使用变频器及软启动器控制的方法来减少水锤效应。
The breaking of very few bolts and loosening of nuts existing in the present operation of 10 Grade BY Type check nuts are analyzed and discussed.
对10级BY型防松螺母当前运用中存在的个别螺栓折断和螺母松动问题进行了分析探讨，并提出了相应的措施与建议。
Therefore, the valves are the new high performance energy-saving check valves with all strong points of Triple Eccentric Hard Sealing Butterfly Valves and Normal Slow Closure Type Check Valves.
本阀一种集三偏心硬密封蝶阀和常规缓闭止回阀所有优点于一身的新型高效节能止回阀。
Therefore, the valves are the new high performance energy-saving check valves with all strong points of Triple Eccentric Hard Sealing Butterfly Valves and Normal Slow Closure Type Check Valves.
本阀一种集三偏心硬密封蝶阀和常规缓闭止回阀所有优点于一身的新型高效节能止回阀。
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