- 相关词组
- have a hard time doing sth做某事有困难；做某事很难
- prompt radiation瞬发辐射
- precursor radiation前驱辐射
- polychromatic radiation多色频辐射
- photoionization radiation光致电离辐射
- prompt nuclear radiation瞬间的核辐射
- prompt gamma radiation瞬发γ辐射
- primary cosmic radiation原宇宙辐射
- protection against radiation放射防护
- a faithful friend is hard to find忠实朋友实难求；知音难觅；益友难得；知音难寻
- primary radiation原辐射;主辐射;初辐射;初级辐射
- press hard upon进逼,压迫,穷追
- light amplification by stimulated emission of radiation激光器；受激辐射式光频放大器；受激辐射光放大
- be hard to do sth非常困难；做某事很困难
- heat radiation热辐射;散热;
- portable radiation monitor携带式辐射监测器
- planetary radiation budget行星辐射收支
- photometric radiation equivalent光度等效值
- posterior thalamic radiation丘脑后辐射
- portable radiation survey meter便携式辐射监测仪
- 今日热词
- 热门搜索
- so cool 太酷了;真酷;搜酷
- airmail n.航空邮件;vt.航空邮寄;<谑>投;掷;抛;
- drop v.落下;（使）降低;使掉下;累倒;中途放下;停止;把…除名;急剧倾斜而下;给…送到;断绝往来;n.滴;少量;减少;糖豆;落差;空投;
- the scarlet letter [电影]红字;
- autonomous adj.自治的;有自主权的;[生，植]自发的;
- cloth n.布，织物;牧师，神父;
- communist n.共产主义者;共产党党员;adj.共产主义的;
- 911 911〔美国的紧急求助电话号码〕;nine one one（美国和加拿大通用的报警电话号码）; nine hundred and eleven；保时捷911
- 番茄 （西红柿） tomato;Lycopersicum esculentum;love apple ;
- following adj.接下来的;下列的;n.追随者;如下;
- tissue n.(动植物的)组织;薄纸;面巾纸;
- rich adj.富有的;肥沃的;丰富多彩的;油腻的;
