Instead, he says that pterosaurs needed all four limbs for liftoff.
他说翼龙需要使用它们所有的四肢来起飞。
Thousand. 2005 one day of night, detected suddenly oneself four limbs are incapable.
2005年的一天夜里，突然发觉自己四肢无力。
Mobility system: no deformation of four limbs, no red swelling of joint. Free movement.
运动系统；四肢正畸形，关节无红肿，活动自如。
After standing in the chilly wind for too much time, the captain felt stiff in four limbs.
船长站在寒风里太长时间，以至于感到四肢僵硬。
The question, then: Why stand and walk on two legs when our ape Cousins get by on four limbs?
问题就随之而来了：为什么在我们的类人猿亲戚们还在用四肢行走的时候，我们就已经直立并用两足行走呢？
Helicopters are notoriously hard to fly because a control exists for each of the pilot's four limbs.
众所周知直升飞机很难飞起来，是因为飞机员的四肢都有操纵装置。
Swimminging in a summer pond, we notice how natural it is to use all four limbs to travel along.
夏日在池塘里游泳，四肢击水前进，感觉非常自然。
Objective Studies on the efficient measurements of movement range of the joints of the four limbs.
目的研究有效的四肢关节活动度的测量方法。
Opening eyes and stretching four limbs, people discover the varicolored world and feel curious inside.
世人睁开眼睛，伸出四肢，发现了眼前这个五彩缤纷的花花世界，他们的内心是充满着好奇的。
And the chimps, on average, use as much energy using two legs as they did when they used all four limbs.
平均来看，大猩猩两条腿行走时消耗的能量与四肢着地行走时的差不多。
It is best to dress your baby with a thin and close-fitting one-piece, uncovering his or her four limbs;
拍摄当天最好给小宝宝穿一件薄而贴身的连体衣，以露出胳膊和腿最好；
IntroductionThe long tube bone fracture of four limbs is the most common damage in the wound orthopedics.
引言四肢长管状骨骨折是创伤骨科最常见及最多发的损伤。
By 375m years ago, the descendants of these first-footers had evolved four limbs clearly recognisable as legs.
大约3亿7千5百万年前，第一批鱼类类“登陆者”的后代进化出了四肢（可以清晰的看出来是腿）。
The electrophysiological tests included check of nerve conduct function of both sensation and motor at four limbs.
神经肌电检查包括四肢感觉和运动神经传导功能，肌电图记录上下肢远端肌肉各1块。
Instead, he says a pterosaur used all four limbs, leapfrogging forward on its knuckles, to propel itself into the air.
相反，他说翼龙使用它所有的四肢向前跑动，从而使自己飞到空中。
So we can affirm that human beings have ever evolved, but they had never crept with four limbs on the ground like those beasts.
因此我们可以断言：人类曾经进化过，但是从来没有像其他野兽那样在地上用四肢爬行过。
In the newest PNAS study, scientists examined a remarkable fossil specimen that had feathers on all four limbs, somewhat resembling a bi-plane.
在这项最新的发表在PNAS上的研究中，科学家仔细考察了一块奇特的化石标本“小盗龙”（mircoraptor），这块化石上的四肢全部都有羽毛，有点类似两栖飞机（bi-plane）。
Thee first four limbs—Yama, Niyama, Asana and Pranayama—are considered external cleansing practices. And next four is considered as internal cleansing practices.
首先的四支被视为外在的清洁练习。余下的四支则视为内在的清洁练习。銮。
Objective to avoid or decrease complications by probing the standard utilization and nursing of air tourniquet in four limbs operations at primary level hospital.
目的探讨气压止血带在基层医院四肢骨科手术中的规范应用及护理，从而避免或减少并发症的发生。
Backbone and four limbs: physiological bending of backbone, no tenderness or vertical percussed pain. Free movement of four limbs. Normal muscle force and muscle strength.
脊柱四肢：脊柱呈生理弯曲，无压痛及纵向叩击痛，四肢活动自如，肌力及肌张力正常。
The utility model provides a constant magnetic field spoon shape bone-setting board used for the internal fixation of fracture of the area of the metaphysis of four limbs.
本实用新型提供了一种用四肢干骺端区域骨折内固定的恒磁场匙状接骨板。
The development, character and surveying numerals of the cranium, trunk and four limbs bones were all in normal chinese range, there was no difference from modern Chinese women.
头颅骨、躯干骨和四肢骨的发育情况、骨骼特征和有关测量数据，均属国人的正常范围，与现代的中国女性无明显差异。
The patient was 21-year-old male with erythema, papule, ulceration, crust, scar and tissue defect on facial skin for 20 years and verrucous hyperplasia on four limbs for 3 years.
患者男，21岁。面部出现红斑、丘疹、溃烂、结痂20年，四肢皮肤疣状增生3年，面部遗留毁容性瘢痕及组织缺损。
The patient presented with fever, cervical pain and weakness of all the four limbs, and was treated with antitubercular chemotherapy along with cervical traction, followed by halo-vest.
患者临床表现有发热、颈痛和四肢肌力减弱，治疗为颈椎牵引、HALO - VEST架固定并全程抗结核化疗。
This paper analyse global coordination motion of biped robot, compute the center of gravity of four limbs mechanism of series connection based on the coordinate transformation of D-H method.
通过分析双足步行机器人整体的协调运动，基于D - H法的坐标变换，对步行机器人四肢串联机构进行了重心合成计算。
During the last two years, multiple erythematous to violaceous papules and plaques with a central vesicle over all four limbs had developed 10 to 14 days after the occurrence of oral ulcers.
在最近的这两年期间，在口腔溃疡发生之后的10至14天，在四肢产生许多红色及紫罗兰色，中间有一水泡的丘疹及斑块。
During the last two years, multiple erythematous to violaceous papules and plaques with a central vesicle over all four limbs had developed 10 to 14 days after the occurrence of oral ulcers.
在最近的这两年期间，在口腔溃疡发生之后的10至14天，在四肢产生许多红色及紫罗兰色，中间有一水泡的丘疹及斑块。
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