Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移.Change of climate must have had a powerful influence on migration.气候的变化对于迁移必曾有过极大的影响.Certain other factors are also involved at the secondary - migration stage....
应用燃烧法在较低温度(600℃)下,于空气中快速合成BaMgAl10O17∶Eu2+ ( BAM ) 荧光体.The aluminate phosphor BaMgAl 10 O 17∶ Eu 2 + ( BAM ) was successfully synthesized by rapid combustion process at 600 ℃ furnace temperature....
A poor but honest man is not to be belittled.穷而诚实的人是不该让人小看的.I have never been praised nor belittled ; I am below no one.我未曾被赞扬或被蔑视; 我从不屈就于任何人之下.Mr Putin at first ignored her murder, then posthumously belittled her work.一...
I didn't want to be low man on the totem pole for ever.我不想永远当小人物。Totem is one of the very antiquated primitive religion forms.图腾是一种古老的原始宗教形式.The North American Indians used to make totem poles.北美印第安人过去常建造图腾柱....