新密市去疤痕多少钱
时间:2019年08月24日 01:33:54

TED演讲视频:南布鲁克斯的环保教师史蒂夫·瑞茨,纽约州的一名教师,在寸草不生的南布鲁克斯刮起一阵环保旋风,他带着他的学生们种植花圃、食物,播撒绿色,还创造了就业!他还把其这一想法推广到其他社区,给人们带来希望。201701/488742

栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201611/477475

Ive reached the end of the pipe,but Im still not down to ground level已经到水管的头了 但是还没到地面okay, were just one storey up from the ground here.这儿离地面就一层楼高了for about 25 foot, just this last little bit.大约7米多 只剩下最后一点点了Lets try and get across here. Look.穿过这里就可以了I want to get across this dangerous elevated maze,我想通过这个高架迷宫dozens of crumbling old concrete walls with bone-breaking drops on all sides.四周老旧的混凝土墙摇摇欲坠 稍有不慎 筋骨俱断The light is fading fast, so I want to get down quickly.And I found something to help.天色渐暗 我得快点下去 我找到了一些有用的东西Use these fan belts to make, like, chain link.用这些风扇传动带 做成链环It becomes, then, an improvised caving ladder.然后就制成了一个临时的绳梯Just lay one over the other,reach under.只要把一根带子压在另一根上 再从下面穿过去And as you pull it through,you get that chain effect,like that.当你把它拉出来的时候 就形成了这种链环 就像这样Industrial fan belts are made of reinforced rubber,which are designed not to stretch even under severe loads.工业风扇传动带是用强化橡胶制成的 使其无法拉伸 即使在很重的负荷下Just gonna larks-foot this round this concrete beam.打一个活结绕在混凝土大梁上面A larks-foot is a simple technique for tying off climbing ropes and will hold my ladder in place.打活结是一项简单的攀爬绳索的打结技术 并且能使我的梯子处在正确的位置Lets give this a test.My ladders going to be strong,让我们来试一试 我的梯子很结实but Im concerned about the strength of this old floor that its attached to.但是我担心这个老楼地板的强度Like wood,steel-reinforced concrete weathers and rots over time,making it brittle and weak.像木头一样 钢筋混凝土随着时间推移也逐渐腐蚀生锈 使它变得脆弱而易碎201610/471145

TED演讲集 那些匪夷所思的新奇思想201606/447625

TED演讲视频:可以立即止血的凝胶忘了伤口缝合吧——有更好的方法让伤口闭合。本TED演讲中,TED伙伴 (TED Fellow) 演讲者Joe Landolina讲述他的发明——一种医用凝胶可以即刻停止创伤出血而不需要施加压力。201705/508868


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