Okay , now the Mastodon is from the semi - late Jurassic period.接下来这头乳齿象是来自侏罗纪中后期.Barney : Hi that's not a mastodon, its Fred singing.那可不是乳齿象, 是弗雷德在唱歌.They hunted huge creatures like the mastodon, which were similar...
Lithograph was introduced from China to Europe.印刷术是从中国传入欧洲的。A print of a woodcut , lithograph, or other engraved material, especially when reproduced in a book.铅版:木刻, 平版或其它雕刻材料的印模, 尤指在书中复制时的印版.The lithography and the man...
His career had stagnated.他的事业已经陷入停滞。His mind has stagnated since his retirement.他退休后头脑迟钝了.The balloting had stagnated, he couldn't win.投票工作陷于停顿, 他不能得胜.Conclusion wutengzhentong capsule could improve the blood circul...
The source is made of semiconductor laser, collimating and coupling system, narrow pulse driving circuit.光源包括半导体激光器 、 准直耦合元件和窄脉冲发射驱动电路.Using video - cam directly collimating on computer screen, it is convenient to operat...