hinged gate weight controlled flowmeter

例句：

1. 1. The new hinged gate was installed to improve the security of our entrance.
   新安装的铰链门是为了提高我们入口的安全性。
2. 2. The old wooden hinged gate has been replaced with a modern metal one.
   旧木制的铰链门已经被现代化的金属门所取代。
3. 3. The hinged gate is designed to be easy to open and close for convenience.
   铰链门的设计是为了便于开启和关闭，以方便使用。