Water and dust resistance rating
// or your fine-tuned version
，详情可参考Line官方版本下载
"We can raise it up again after a year to change the batteries. That means we can avoid using divers, which is a really risky operation that we wanted to avoid," he said.，详情可参考heLLoword翻译官方下载
输出：[null,1,1,1,2,1,4,6]