The article studies how to pedaling a bicycle correctly according the pedal move a cir-cular motion under the different strength base and different working stage on mechanics.
本文从圆周运动的力学原理出发,分析了自行车足踏蹬运行1周的受力情况和其不同的工作阶段,介绍了3种踏蹬技术和运动员进行踏蹬动作训练的注意事项。
The article studies how to pedaling a bicycle correctly according the pedal move a circular motion under the different strength base on mechanics and morphology.
本文从力学和形态学的角度,根据自行车足踏蹬一周圆周运动的受力情况,进行踏蹬技术特征的分析研究,试图解释运动员正确踏蹬骑行动作的科学原理。
It puts forward a skill,that is earlier stretch of the muscles,to make further increase on the tension coming from shrinkage and quicken the active rhythmn,with suitable angle,rational height and the fastest initial speed putting the shot.
运用生物力学的基础理论，对背向侧蹬滑步推铅球技术连续图片进行综合分析，提出予先充分拉长大肌肉群的长度，进一步加大收缩时产生的张力，加快推球的运动节奏，以适宜的角度，合理的高度和最快的出手初速度推掷铅球的动作技术。
Through consulting the documents,the author analyzed the various viewpoints of sprint running power sources comparatively;and thought that the leg-drive backward is not the only source for running in the sprint.
就短跑途中跑动力来源的各种观点加以对比分析,认为后蹬不是短跑途中跑的唯一动力来源,对途中跑中动力的各种来源不能片面讨论,应辨证地来看待与分析。
brake(eg a fixed-wheel cycle)by reversing the pedalling action
倒蹬踏板制动（如脚蹬闸自行车）.
The dying lamb fell, its legs flailing helplessly.
小羊快要死了, 倒在地上四条腿又踢又蹬.
The dying lamb fell,its legs flailing(about)helplessly.
小羊快要死了,倒在地上四条腿又踢又蹬.
He may know what it is to come down in the world, and to be afflicted with a great personal calamity.
他也许知道世路上的蹭蹬，身世的潦倒是什么滋味。
rudder pedal adjustment
(方向舵)脚蹬调整
Sleep in, kick back, and enjoy your day off.
睡睡觉，蹬蹬脚，享受你的空闲。
He set his mind to pedalling again.
他又只顾蹬起车来。
I was just pedalling along.
我在蹬着自行车前进。
The thrusting motion of the legs in swimming.
打水游泳时蹬脚的动作
We pedalled slowly up the hill.
我们慢慢蹬车上山。
He who will climb the ladder must begin at bottom .
爬梯子须从第一蹬开始。
or performing on a tread-mill is work,
蹬车轮就算是工作，
rudder pedal adjustment crank
方向舵脚蹬调整手柄
The feet crushed her back.
人们的脚蹬着她的后背。
What are you gaping at?
你目蹬口呆地看着什麽?
Influence of Back Step Running to Back Step Technology of Modern Sprint
试论后蹬跑对现代短跑后蹬技术的影响
Influence of back step running to running technology of modern sprint;
后蹬跑练习对短跑途中跑后蹬技术的影响
Investigation of Pedaling Force at Different Cadence in Cycle-ergometer;
不同踏蹬频率下自行车运动员踏蹬力研究