运动员抱怨说网球场的反弹力不均匀。
Players complained about the uneven bounce of the tennis court.
这个网球已经没有弹力了。
一位49岁的患者患有真菌性角膜溃疡并发后弹力层膨出和微小穿孔。
A 49-year-old lady had presented with an fungal corneal ulcer by a descemetocele and microperforation.
争取到弹力裤，巴拉克。
它有一定的弹力，对吧？
现在我们讨论一下弹力。
所以，准备好扔掉你的布洛芬或是弹力绷带。
So be prepared to throw away your ibuprofen and crepe bandages.
皮肤于是不再有弹力。
若弹力巨大，那么在物体上的，加速度就大。
If I have a huge spring force, the acceleration on a given mass will be high.
弹力势能，这是势能。
And this is what we call the potential energy of the spring.
弹力方向相反，所以弹力有个负号，来表示方向。
So the spring force is opposing that, so the spring force has a minus sign here to indicate the direction.
它意味着，如果给一个小的张力，弹力就是巨大的。
It means that if I give it a small extension, that the spring force is huge.
我们也可以运用，机械能守恒，因为弹力，是恒力。
We were able to apply the conservation of mechanical energy because spring forces are conservative forces.
我将要提取时间，就像我在，弹力那个例子里那样。
I'm going to take the time derivative just as I did in the case of the spring.
男演员安迪•色基斯身穿弹力紧身服同亚斯汀单挑。
Actor Andy Serkis dressed in a Lycra bodysuit22 to go one-on-one with23 Astin.
做好应付这种情况的准备会使现存的欧元区更加有弹力。
Preparing for this eventuality would make the existing euro area more resilient.
有一些跑步者更喜欢穿弹力的自行车短裤，以防止腿部擦伤。
Some runners prefer to wear spandex bike shorts to prevent chafing between their legs.
至今欧洲经济在面临信用危机和美国衰退时表现出惊人的反弹力。
So far Europe's economies have proved surprisingly resilient in the face of the credit crunch and an American recession.
跟我刚才做的相似，但是问题更简单，因为弹力是，完全一维的。
Very similar to what I just did, but now it is a simpler problem, because a spring is exactly one-dimensional.
麻省宇航服，全称为重力负荷对策紧身衣(GLCS)，是有弹力网布制成。
The MIT suit, called the Gravity Loading Countermeasure Skinsuit (GLCS), is made of elastic mesh.
适用于保守力，像重力和弹力，对非保守力同样，适用，如摩擦力。
This always applies both for conservative forces, like gravitational and spring forces, but it also holds for nonconservative forces such as friction.
弹力牛仔面料：95%棉5%化纤, 面料弹力4cmApprox.
Elastic jean: 95% cotton, 5% syntheticfiber, fabric elasticity 4cmApprox.
弹力灯芯绒匹配黄色腰带衬衫，薄荷雪纺V字领上衣，白色，蓝色和红色条纹衬衫？
Matching them with Yellow Stretch Corduroy Belted Blouse, Mint Chiffon V-neck Blouse, a White, Blue & Red Stripe Button Front Shirt?
它们各自受到的弹力-，如果我称之为弹力-，将只会是，这个力的一半。
Then the spring force on each one of them — - if I call that the spring force — will only have to be half to counter this force.
很多人骑车上班，但身穿的是日常的衣服，看不到有人身着弹力纤维服装骑车。
While many bike to work, they do so in their street clothes. Spandex is nowhere in sight.
当你越来越熟练自如，试着头顶主动向地板伸展，借助地板的回弹力，帮助身体提升。
As you become more proficient and comfortable in the pose, learn to lift and lighten the body by actively grounding the crown of the head onto the floor.
鲍勃说，我得明白雨水和自来水在弹力方面的不同，我得保证所有的事情都是正确的。
Bob: "I had figured out that the elasticity of rainwater was different from the elasticity of hose water, and I wanted to set the thing just right."
鲍勃说，我得明白雨水和自来水在弹力方面的不同，我得保证所有的事情都是正确的。
Bob: "I had figured out that the elasticity of rainwater was different from the elasticity of hose water, and I wanted to set the thing just right."
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