此项训练包括伸展和收缩腿部肌肉。
The exercise consists of stretching and contracting the leg muscles.
如果许多可伸缩天线附着在微型无线电收音机上面，并且放置于大桥内部，它们就会随着桥相应地伸展或收缩，这样就会经常性的自我调谐。
If lots of flexible antennas attached to small radios were placed inside a bridge, they would expand or contract along with the bridge and so would constantly retune themselves.
以仰卧举重和引体向上开始,并最终做肱三头肌的伸展和收缩，将是一个很好的例子。
Starting with bench press and pull-ups, and eventually doing tricep extensions and curls would be a good example.
当试图向端部运动时，收缩的组织结构被不经意的伸展和破坏，并刺激疼痛受体。
Upon attempting to move to end-range, shortened structures are prematurely stretched and deformed which stimulates nociceptive receptors.
暗夜精灵开始变形，他伸展的胳膊变成黑亮美丽的翅膀，他的躯干收缩变成飞鸟的胸脯，最后他的脸和腿都变形了。
The Night Elf began to shift form. His outstretched arms formed beautiful ebony wings, his torso shrank, forming an avian chest. His face and legs took final shape.
我们采用PNF拉伸，这是一种将被动伸展和等长收缩相结合的方法，旨在快速提高身体的灵活性。
We use PNF stretching which is a combination of passive stretching and isometric contractions designed to increase flexibility more rapidly.
在万象头和伸缩接头的应用下，传动轴还能进行收缩，伸展或改变运行角度等方式来传递扭矩。
The drive shaft is able to contract, expand, and change operating angles while transmitting torque through the use of universal joints and slip joints.
亨特补充道：“最便捷的应用是不需要伸展的预收缩织物。”
"The easiest fabric applications are the ones with no to light stretch, so pre-shrunk fabrics are best," Hunter adds.
股四头肌前侧和后侧收缩，伸直膝盖、伸展腘旁肌下部。
The front and back leg quadriceps contract, extending the knees and stretching the lower region of the hamstrings.
在你的膝已经伸展出一阵子之后，在相同的位置做10次股四头肌收缩。
After your knee has stretched out for a while, perform a set of ten quadriceps contractions with your leg in the same position.
拜日式交替收缩、伸展肌肉群。
The Sun Salutation alternately contact and relax group of muscles.
图像将被伸展或收缩，使一定数量的像素填补窗口。
The image will be stretched or shrunk so that the given number of pixels fill the window.
尺蠖蛾任何尺蠖蛾科的蛾，通常称为尺蠖，通过身体交替的收缩和伸展来伸屈前进。
Any of various moths of the family Geometridae, having caterpillars commonly known as measuring worms that move by looping the body in alternate contractions and expansions.
与我们的自我保护意识紧密相连的腰肌可以让我们面临危险时收缩卷曲进入自我保护的胎儿状态，或是伸展延长来支援坚实的背部和腿部肌肉来处于战斗的状态。
Intimately involved in the fight or flight response, the psoas can curl you into a protective fetal ball or flex you to prepare the powerful back and leg muscles to spring into action.
先从靠墙的臀关节收缩，及离墙较远的肩膀等量的再收缩，完成伸展。
Stretching through pre-traction of the hip-joint on the wall-side with isochronic retract of the outside shoulder.
先从靠墙的臀关节收缩，及离墙较远的肩膀等量的再收缩，完成伸展。
Stretching through pre-traction of the hip-joint on the wall-side with isochronic retract of the outside shoulder.
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