Actinometer
n. 光化线强度计, 日射强度表, 曝光计\\n[化] 光能测定仪; 露光计; 化学光度计
🗣️ 情景例句
Especially when it comes to speaking in English and fortunately or unfortunately.
特别是要用英文来演讲,不知是幸运还是不幸。
Are you free tomorrow?
你明天有空吗?
Lights were blazing and men were running here and there: they had just discovered that a prisoner had escaped.
他们刚刚发现有一个俘虏跑了。
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