Radiation contrast
[医] 辐射对比
🧩 词语组成解析
🗣️ 情景例句
If there's anything you need while you're in town, just let me know.
你在镇上有什么需要，就告诉我吧。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。