selenium是什么意思音标:英 [səˈp:niəm]美 [sɪˈpniəm]

n. 硒
[化] 硒Se

n. a toxic nonmetalpc element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metalpke allotrope conducts electricity better in the pght than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)

selenium的用法和例句：

1.I found minute traces of gypsum and selenium on the mystery wrist bone.

我找到了微量石膏 腕骨上也有少量的硒

2.It's much better to use selenium or ricin or arsenic but procuring these in Iraq must be difficult.

用硒粉 蓖麻毒素 或砒霜要好得多 但在伊拉克要弄到這些一定很困難

3.There are traces of lead, cadmium, arsenic, chromium, selenium, even low levels of uranium radiation.

在被害者体内发现了铅 镉 砷 铬 硒的痕迹 甚至还有少量的铀辐射