Selenium tetrafluoride
[化] 四氟化硒
🧩 词语组成解析
selenium
[[si'li:njəm]]
n. 硒\\n[化] 硒Se
n. [化]四氟化物
🗣️ 情景例句
About 9:30.
大约九点半。
How long will you be in?
你将进去多久？
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。