Rontgen
X光的光量单位
📖 牛津释义
rontgen
= roentgen.
🏥 医学释义
伦琴（X 射线量单位）
🗣️ 情景例句
Don't worry about it.
别介意。
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Compared with competing products, ours is smaller and lighter.
比起其它竞争产品，我们的比较轻巧。