The wings of the chicken have become vestigial; it can no longer fly.鸡的翅膀逐渐退化, 不会在空中飞行了.Vestigial remains of these plays are now seen in the Christmas pantomime.在圣诞节演出的哑剧中还能看到这些戏剧残留下来的痕迹。One laboratory stock of Drosophil...
One laboratory stock of Drosophila melanogaster has very reduced or vestigial wings.果蝇的一种实验品系,翅膀缩小,称为残翅.Vestigial remains of these plays are now seen in the Christmas pantomime.在圣诞节演出的哑剧中还能看到这些戏剧残留下来的痕迹。The wings of the ...
完全干燥玻璃粉吸附大量的二氧化碳.Considerable quantities of CO ₂ are adsorbed even by perfectly dry glass powder.这是非常微电子准备无铅玻璃粉重要.It is very important for microelectronic to prepare lead - free glass powders.在3Y-TZP粉料中直接加入玻璃粉,可显著降低材料的烧结...
Overturning and sliding are seldom a factor in the design of arch dam.拱坝设计中很少考虑倾覆和滑动的问题.Feng Yun - ching answered hastily , springing up and all but overturning the opiumlamp as he did so.冯云卿陡的跳起来说,几乎带翻了烟盘里的烟灯.Demonstrat...
其核酸结构为线状双股DNA, 衣壳为二十面体对称,有囊膜.It has linear double strand DNA, icosahedral - capsid and envelope.八面体和二十面体的三角化效果不错,而且也不难实现.Octahedral and icosahedral tessellations work well and are notvery difficult to implement.球状病毒衣壳采用二...
研究了阿霉素 ( ADR ) 和安吖啶 ( AMSA ) 与小牛胸腺DNA结合 成复合物的药理特性.ADR与DNA的 结合强度约相当AMSA的 100倍.We have compared in vitro binding of adriamycin ( ADR ) and amsacrine ( AMSA )依沙吖啶注射液有刺激子宫收缩作用.Ethacridine lactate injection has an effect of s...