long ion chamber是什么意思

用法例句

The long cable used as the 110 kV incoming line of the step-down substation for Shanghai Yangshan Deep Waster Port is recommended in the aspects of type selection and installation.

介绍了上海洋山深水港降压站110 kV进线所用长电缆的选型、安装等情况,重点介绍了敷设于东海大桥上长27 km的跨海段电缆的安装过程、针对桥梁电缆敷设的特殊环境所采取的若干措施及引进桥梁伸缩引吸装置的先进技术,为今后的桥梁电缆的安装提供了参考依据。