A four-joint flexible underwater pisciform propulsion system is developed and the control flow chart is presented.
设关节柔性水下仿鱼形推
器,给出
控制流程图,建立
运动学方程。
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They collected data on plantar pressure, joint kinematics and muscle parameters during running and resistance exercises under different load conditions, which will help elucidate the changes in muscle-tendon interaction during spaceflight.
他们在不同负荷条件下跑步和抗阻训练中,收集了足底压力、关节运动学和肌肉参数
数据,
结合轨道驻留时间
影响,这将有助于阐明太空飞行期间肌肉-肌腱相互作用
变化。
Such nonsense leads to schemes like Brain Gym, an " educational kinesiology" programme once backed by the British government, which claimed that some pupils should stretch, bend and emit an " energy yawn" while doing their sums.
这样无稽之谈催生了一些无益之举,比如英国政府曾经支持过
一个" 教育运动学" 项目——健脑操(Brain Gym)。该项目称有些学生在做算术练习时应该做做拉伸弯弯腰,再打个" 提神呵欠" 。
" In older people, an exercise program appears important for brain maintenance, " says Daniel M. Landers, professor of exercise science at Arizona State University, who recently published an article reviewing the scientific literature on activity's effect on the brain.
亚利桑那州立大学运动学教授丹尼尔? M. 兰德斯最近发表了一篇文章,对有关运动对大脑影响
科学文献进行了综述。他说:“对老年人来说,锻炼计划对维持大脑功能显得非常重要。”