optical fiber cable joint closure

例句：

1. 1. The engineers were tasked with the responsibility of ensuring the optical fiber cable joint closure was properly installed.
   工程师们负责确保光纤电缆接头密封安装得当。
2. 2.The company's new product line includes an innovative optical fiber cable joint closure that can reduce power loss by up to 30%.
   该公司推出的新产品线包括一种创新的光纤电缆接头密封，可减少高达30%的功率损耗。
3. 3.The technician carefully inspected the optical fiber cable joint closure before installing it to ensure its proper functioning.
   技术员在安装前仔细检查了光纤电缆接头密封，以确保其正常工作。