Closed operator
[计] 闭算子
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
🗣️ 情景例句
I don't understand.
我不懂你在讲什么。
I would like to talk to Mr. Liu.
我想请刘先生来听电话。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，