Photorelay circuit
[电] 光继电器电路
🧩 词语组成解析
光控继电器
🗣️ 情景例句
That's all right.
没关系。
The ass wags his ears.
自鸣得意。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。