a国产亚洲欧美精品一区在线观看_看一级黄色毛片_在线观看播放_一级片精品_国产精成人品日日拍夜夜免费_草久在线视频

食品伙伴網(wǎng)服務(wù)號
 
 
當(dāng)前位置: 首頁 » 專業(yè)英語 » 專業(yè)知識 » 正文

Scandium (Sc)

放大字體  縮小字體 發(fā)布日期:2007-05-28
核心提示:Scandium is one of the rare chemicals, which can be found in houses in equipment such as colour televisions, fluorescent lamps, energy-saving lamps and glasses. All rare chemicals have comparable properties. Scandium can rarely be found in nature, a

Scandium is one of the rare chemicals, which can be found in houses in equipment such as colour televisions, fluorescent lamps, energy-saving lamps and glasses. All rare chemicals have comparable properties.
Scandium can rarely be found in nature, as it occurs in very small amounts. Scandium is usually found only in two different kinds of ores. The use of scandium is still growing, due to the fact that it is suited to produce catalysers and to polish glass.
Scandium is mostly dangerous in the working environment, due to the fact that damps and gasses can be inhaled with air. This can cause lung embolisms, especially during long-term exposure. Scandium can be a threat to the liver when it accumulates in the human body.

更多翻譯詳細(xì)信息請點(diǎn)擊:http://www.trans1.cn
 
關(guān)鍵詞: Scandium (Sc)
[ 網(wǎng)刊訂閱 ]  [ 專業(yè)英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關(guān)閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業(yè)英語
點(diǎn)擊排行
 
 
Processed in 5.535 second(s), 1076 queries, Memory 4.06 M
主站蜘蛛池模板: 国产美女一区二区三区在线观看 | 久青草无码视频在线观看 | www蜜桃视频 | 1024精品一区二区三区日韩 | 一区二区三区国产最好的精华液 | 欧美精品无码一区二区三区在线 | www.久久色 | 狠狠躁18三区二区一区 | 成人性色生活片 | 亚洲AV永久无码精品网站 | 91青青国产 | 97影院理论片手机在线观看 | 日韩大片免费观看 | 曰韩内射六十七十老熟女影视 | 99vv1com这只有精品 | 久久99久久99精品免观看女同 | 好爽好紧好大的免费视频国产 | 91精产国品一二三区 | 观看av | 精品国产乱码一区二区三区a | 久久免费国产精品1 | 亚洲中文字幕无线无码毛片 | 扒开粉嫩的小缝喷白浆h | 精品在线视频亚洲 | 大陆黄色一级片 | 日批免费观看视频 | 成熟女人色惰片免费视频 | 国产清纯白嫩大学生正在播放 | 亚洲综合无码无在线观看 | 亚洲免费高清视频 | 国产精品186在线观看在线播放 | 二三区视频 | 无码人妻出轨黑人中文字幕 | 亚洲人成网网址在线看 | 国产人久久 | 国产精品亚洲精品日韩已方 | 国产无套护士在线观看 | 男男一级淫片免费播放 | 另类校园春色小说综合网 | 午夜a毛片 | 日韩免费观看 |