and operational troubles
操作上的麻烦
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In part, it's because neither model has been updated in awhile, and their parent companies have had ongoing financial and operational troubles.
部分原因是它们的车型都好久没更新了，而且它们的母公司财政和运营上都陷入困境。
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It also discusses its operational principle and how to remove troubles.
本文对单稳阀的工作原理和常见故障及排除方法做了介绍。
应用推荐
模块上移
模块下移
不移动