查询词典 pendulum meter

In the first way,we know the conjugacy of the physical pendulum,so we can find the conjugacy point through making the diagram of by using Mathematica and get the value of g.

第1种方法利用复摆的共轭性，采用Mathematica软件作图，从而找寻到共轭点，进而求出g值。

The hook and rope of a crane can be regarded as a pendulum that is drived by slewing motion and derricking motion.

起重机这类起重运输设备的吊钩缆绳可以看作受回转、变幅运动驱动的单摆，但起吊运动也在水平方向上产生科里奥利力，影响载荷摆动的规律。

The hook and rope of a crane can be regarded as a pendulum that is drived by slewing motion and derricking motion and cause sway.

起重机这类起重运输设备的吊钩缆绳可以看作受大车、车运动驱动的机械摆，会产生摆振。

The hydrometric pendulum is sometimes used to determine flow velocities in open channels.

测流速的摆锤有时用于确定明渠中的流速。

In pendulum appliance group: the velocity of maxillary first molar distalizing was 0.8mm per month, distal tipping 12.6°,buccal move 0.5mm, horizontal rotation 2.8°; maxillary central incisor move mesially 0.5mm. Conclusion Two methods successfully distalized maxillary molars to appropriate positions.

钟摆矫治器组上颌第一磨牙平均远中移动3.5mm，疗程4.2个月，平均移动速度0.8mm/月；磨牙长轴向远中倾斜角度12.6°；磨牙颊向移位0.5mm；磨牙发生远中舌向水平旋转约2.8°；上颌中切牙切端向远中移动0.5mm。

The effect of NAA, BA and GA on the germination and growth of C. pendulum seeds are studied.

本文研究了NAA、BA及GA对硬叶吊兰种子萌发及发育成小苗的影响。

The differential equations of motion and the state space model of the single inverted pendulum nonconservative damping system are deduced by using the second kind Lagrange equation.

利用第二类Lagrange方程推导了一级倒立摆非保守有阻尼系统的运动微分方程和状态空间模型。

In comparison with a pushbroom aerial camera, a TDI CCD pendular aerial camera has a larger angle of view, but it has the problem of image motion in the direction of pendulum swing.

基於TDI CCD的航空相机通常工作於推扫方式，介绍了一种新型TDI CCD全景式航空相机。

The model of brain concussion of rat can be established successfully using iron pendulum hitting device; 2. The spatial learning and memory deficits of the rats are detected by MWM in early period post-BC(from 1 to 3 days after BC); 3. Pycnosis degeneration or necrosis neurons of the cerebral cortex, dorsal hippocampus, dentate fornix and brainstem reticular formation are identified in BC rats; 4. There are significantly changes in the number and activity of cholinergic neurons in the basal forebrain and brainstem reticular formation after BC; 5. The change of cerebral neurons and cholinergic neurons correlate with cognitive deficits in BC rats .

1、单摆式闭合性机械打击装置能成功建立脑震荡大鼠模型；2、脑震荡大鼠在MWM实验中出现早期空间认知行为障碍；3、脑震荡大鼠大脑皮质、背侧海马、齿状回和脑干网状结构出现程度不等的部分神经元固缩变性和不完全性坏死；4、脑震荡大鼠基底前脑、脑干网状结构ChAT活性表达有明显变化；5、脑震荡大鼠认知障碍与相关脑区神经元、胆碱能神经元的变化有关联。

Methods: A brain concussion was produced in rats using a simple pendulum device model. One control (n=12) and six experimental groups were used(n=12 in each group). The cerebral concussion groups were assigned to sacrifice times ranging from 1 day to 24days after injury.A Morris Water Maze memory paradigm was used to assess learning and memory function. Pycnosis degeneration or necrosis neurons in the locus cerebral cortex, dorsal hippocampus, dentate fornix and brainstem reticular formation were observed and counted after brain concussion. Cholinergic neurons in the basal forebrain and brainstem reticular formation were identified and quantitated using choline acetyltransferase.

应用自制单摆式闭合性机械打击装置建立脑震荡大鼠模型；成年SD大鼠随机分为1个对照组(n=12)和6个脑震荡组(即伤后1、2、4、8、16、24d，n=12)；应用Morris水迷宫(Morris Water Maze，MWM)实验评价大鼠的学习记忆功能；用光镜对大鼠的上述脑区的固缩变性坏死细胞进行观察和计数；用免疫组化方法检测基底前脑和脑干网状结构的胆碱乙酰转移酶(cholin acetyltransferase，ChAT)阳性细胞的表达。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。