In other words, sprinters sacrifice the mechanical advantage of a long lever for the benefit of a stronger push-off.

換句話說(shuō)乱伦图片视频一区二区三区，短跑選手犧牲了長(zhǎng)杠桿所帶來(lái)的力學(xué)優(yōu)勢(shì)從而獲得了更為迅猛的起跑速度。

Further we divided the stand phase into three phases including loading response phase, mid stand phase and push off phase. In the loading response phase flat foot group presented higher frontal plane and saggital plane motion at rearfoot. In the mid stand phase they had higher midfoot motion at frontal plane.

將站立期細(xì)分成承重反應(yīng)期美女裸动图一区二区三区操、站立中期深夜女人18毛片A级毛片免费、推進(jìn)期，則發(fā)現(xiàn)在承重反應(yīng)期后足冠狀面及矢狀面活動(dòng)角度大於正常足欧美欲望视频，站立中期中足冠狀面活動(dòng)角度大於正常足a毛片免费全部播放完整网站，推進(jìn)期后足矢狀面活動(dòng)角度少於正常足。

It's about time to push off .

差不多到了該走的時(shí)候了A级毛片就高清免费视频。

Was I supposed to watch you push off and not go myself?

我會(huì)想要看你受苦自己置身事外嗎日本中文字幕系列网站？

The applicable conditions of the accelerating theory of push-off of speed skating.

反映了支點(diǎn)與重心間力的相互作用關(guān)系和蹬冰動(dòng)作的加速條件。

We really feel that it helps him in his push off the wall.

我們認(rèn)為這能幫助他在比賽中轉(zhuǎn)身離開(kāi)池壁后提高速度黄色强奸美女A级片。

I told her to push off and she shouted at me.

我叫她離開(kāi)免费人成黄页在线观看欧美，結(jié)果她沖我大喊大叫。

It was perhaps rude of him to tell you to push off when you hadn't yet finished talking.

你還沒(méi)有談完男女性爱黄色视频是免费，他就叫你走美女色色视频，那可以說(shuō)是很不禮貌的。

We must push off soon, it is getting late.

我們必須趕緊出發(fā)国产亚洲日韩欧美高清在线MV，天色漸漸晚了久久婷婷国产综合日韩欧美。

The boat hit me on the shoulder while I was trying to push off the bottom of the boat.

船在我努力避開(kāi)船底的時(shí)候撞著了我的肩膀。