radon gas
英
美
- gas n.煤气；气体；汽油；空话vt.使吸入毒气；毒(死)；给...加汽油vi.空谈；加汽油
- radon n.氡
- Recent studies indicate that radon hazard is a widespread geological hazard.
氡气灾害是一种广泛分布的地质灾害。
- The content of radon gas and methane bacteria indicates obvious abnormity above the gas pool.
气田上方氡气和甲烷菌的含量存在明显的异常。
