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....
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...
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 ...
Railway applications - Electric equipment for rolling stock - Part 4: electrotechnical components - Rules for AC circuit - breakers.铁路设施.机车车辆用电气设备.第4部分: 电工元件. 交流断路器规则.ISO collaborates closely with the International Elect...
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。...