English translation for "前级转换"

preceding switching

Similar Words：

"前级真空软管" English translation, "前级真空系统" English translation, "前级真空压强" English translation, "前级真空转子" English translation, "前级真空组件" English translation, "前几次会议遗留的事项" English translation, "前几天" English translation, "前几天，某日" English translation, "前几天，最近" English translation, "前几天使用两台" English translation