在洞口内 meaning in English
inside/in/at the mouth of a cave
Examples
- Corxina sectional door is installed inside of the door space which doesn ' t be affected , is c - onvenient for cars in and out and ensures secu - rity
Corxina工业提升门安装在洞口内侧，不影响门洞的宽度，不会撞到门体，方便车辆进出，安全可靠。