The periodic movement of the moon round the earth takes 28 days.
人们以前以为地球是扁平的。
Afterward the bucket-wheel organization and the swiveling mechanism movement starts to take the material, the amplitude organization matches the conjunction material to make the periodic movement.
随后斗轮机构及回转机构运行开始取料，变幅机构配合取料作周期性动作。
In addition, specific sleep disorders such as sleep apnea and periodic limb movement disorder are also associated with age, and affect sleep.
另外，睡眠障碍，例如睡眠呼吸暂停、周期性肢动症等都与年龄有关，并且会影响睡眠质量。
Healthy individuals demonstrated a more periodic gait with regular and higher velocity foot kicks and faster torso and head movement than impaired individuals when completing a cognitive task.
完成认知测验时，与受损害个体相比，正常个体步态呈规则周期性、抬脚速度更快，并且头部和躯体的运动也更迅速。
The rapid, periodic, jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.
快速的，周期性的，在睡眠周期的某个时期做梦时发生的痉挛性的眼睛的运动。
But parasomnias (sleep walking or night terrors); periodic limb movement disorder or restless leg syndrome; and other conditions, such as asthma and eczema, can also affect a child's sleep.
但是异睡症(梦游或者夜惊)，周期性肢体运动障碍或者不安腿综合症，还有其它比如哮喘和湿疹，也会影响孩子的睡眠。
The periodic switching of the magnetic north and south poles of the Earth throughout time, probably as a result of movement of fluid within the Earth's core.
地球的地磁北极和南极随时间作周期性的变换，或许是地核内部流体运动的结果。
In kinesin's actual movement, it continuously changes its conformation to catalyze ATP's hydrolysis. The role of microtubule is not a simple periodic potential.
在实际运动中，马达不断进行着自身构象变化并催化AT P水解，微管产生的势场也不仅仅是一个简单的周期势函数。
The method of weakening centrifugal force in the rotary ring flume is proposed and sediment movement under the effect of periodic reciprocating current is tested in the ring flume.
介绍了旋转环形水槽的结构和工作原理，提出了削弱环形水流离心力的方法，通过环形水槽中周期往复流泥沙运动试验得出水体含沙量与床面剪切力和水体挟沙力之间的关系。
Practice parameters for the treatment of restless legs syndrome and periodic limb movement disorder.
治疗不宁腿综合征和周期性肢体运动障碍的实践参数。
The historic evolution shows that the modern tectonic movement is periodic.
水系历史演变又表明现代构造运动具有周期性。
An active tectonic movement changes the space shape of stratum and result in periodic stress concussion, which will influence hydrocarbon migration and accumulation as fluid deposit in stratum.
构造活动改变地层的空间形态，同时产生周期性的应力震荡变化。油气作为储存在地层中的流体矿产，在运聚期明显要受到构造活动的影响。
An active tectonic movement changes the space shape of stratum and result in periodic stress concussion, which will influence hydrocarbon migration and accumulation as fluid deposit in stratum.
构造活动改变地层的空间形态，同时产生周期性的应力震荡变化。油气作为储存在地层中的流体矿产，在运聚期明显要受到构造活动的影响。
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