air vent screw

例句：

1. 1. The engineer installed the air vent screws to improve the efficiency of the exhaust system.
   工程师安装了通风孔螺丝，以改进排气系统的工作效率。
2. 2. During the construction phase, it's important to ensure that all air vent screws are securely fastened.
   在施工阶段，确保所有通风孔螺丝都牢固固定是很重要的。
3. 3.The technician carefully removed the old air vent screws and replaced them with new ones to prevent future leaks.
   技术人员仔细地拆下了旧的通风孔螺丝，并用新的替换了它们，以防止未来的泄漏。