鱼的腹鳍a fish's ventral fin腹鳍 对应着四足动物的后肢.Ventral ( or pelvic ) fins correspond to the hind limbs of a quadruped.这快速流动的气流为腹鳍提供了额外的升力.This faster - moving air provides the pelvic fin with additional lift....
Exchange of unequal values makes the poor countries poorer.不等价交换使穷国更穷.My handwriting is poorer than hers.我的字还不如她的.There were also pledges to soften the impact of the subsidy cuts on the poorer regions.他们还承诺要减轻削减补贴给较贫困地区带...
浅色是挂放图画或镜子很有效果的衬托。Light colours provide an effective backdrop for pictures or a mirror.浅色比黄褐色和红棕色这些秋季色彩更流行。Pale colours are much more in vogue than autumnal bronzes and coppers.他的鞋子把浅色地毯的一角弄皱了。His shoe had rucked up one ...
The stability and space correlation about the sky wave propagation time - delay in Loran - C system are studied.研究了罗兰 -C 天波传播时延的稳定性与空间相关性.artificial propagation of fish鱼类人工繁殖Clonal propagation can also give some large ga...
The vehicles have been modified to suit conditions in the desert.车辆已改装过以适应沙漠的环境。Top supermarkets are to ban many genetically modified foods.大品牌超市即将下架许多转基因食品。The plane was a modified version of the C-130.这种飞机是C-130的改进机型。...