Materials through which no radiation is propagated are called opaque . 辐射线不能透过的物质叫不透明体。
Radiation ! that ' s dangerous ! no radiation 辐射!太危险了!不能受辐射!
4 . with luxeon high power led , high brightness , no radiation high temperature as traditional illuminants while using as large square ceiling lighting 4led射灯灯体采用高压铸铝成型,机械强度高搞腐蚀能力强经久耐用。
Magnetism stress measurement method has the merits of high measuring speed , deep detecting depth ( up to several millimeters ) , no radiation and being easy to take , etc 摘要磁性应力测量具有测量速度高,探测深度大(可达数毫米) ,无辐射危险,携带方便等优点。
Jade ' s unique quality of the jade , no radiation , no pollution , health , illnesses and other characteristics as well as foreign users favor ! the candidate countries is also one stone 岫玉以其独特的玉质,无辐射、无污染、保健、祛病等特点深受国内外用户的青睐!同时也是候选国石之一