dark open

• 暗启(幕)

dark open的用法和样例：

例句

1. Can you open the bottle with the opener?
   你能用启子将瓶子打开吗？
2. Headstock piece on media flows and forces open or closed to prevent backflow valve media called a non-return valve.
   启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。