Because of long chain couple helix composition of XC, XC can drag reduction, make drilling fluid keep disturbed flow condition in horizontal section, and stop cutting bed formation. XC的长链状双螺旋结构使其具有减阻作用,使钻井液在水平段始终处于紊流状态,阻止了水平段岩屑床的形成;
Due to the disturbed flow at bridge pier, the original condition of flow and bed scouring and sedimentation was changed, and thus the navigation condition was affected. 建桥后由于桥墩扰流,改变了原有的水流条件与河床冲淤条件,从而影响到原有的通航条件。
We can know if the calibration mode is disturbed by the environmental noise by the principle components analysis, which provide the physical basis for the explanation of measurement result and the optimization of the measurement method and the measurement condition. 对主成分进行分析可以为测量结果的解释和测量方法、测量条件的优化提供物理依据。
The growth of aluminum solidification dendrite has been simulated under disturbed and undisturbed condition, which based on the phase field method. 在相场法数学模型基础上,对有扰动和无扰动情况下的铝金属凝固枝晶生长进行了模拟;
Meeting a dynamic saddle point ( DSP) with zero valued speed on the disturbed trajectory is the necessary and sufficient condition of pole slip for the motion system, but not that of divergence. 揭示了运动系统经过动态鞍点是发生滑步的充要条件,而不是发散的充要条件。
The results also show disturbed Musa acuminata community would keep a condition of big amount population, lower species diversity and high important value. 人为干扰使得小果野芭蕉群落长期保持在一个种群数量较大、物种多样性指数较低和重要值较大的状态。
This paper analyzes some issues occurred in dam deformation monitoring, including wet environment, facilities disturbed by external condition, refraction influence, mark deformation, few datum value obtained before impounded. So, some opinions have been brought forward by practice. 对大坝变形监测中存在的环境潮湿、设备受各种外界条件干扰、折光影响、测点变形、蓄水期前很少测得大坝监测的基准值等问题进行分析,并根据实践提出一些看法。
By solving the disturbed equations, the bifurcation condition of the dynamic buckling, critical buckling load and buckling mode are obtained. 通过求解扰动方程得到了动态屈曲的分叉条件、临界载荷和屈曲模态。
Comparing the eclipse depth time, in Shanghai area it was delayed about 30 minuted when this effect reached peak value. This fact could be considered to come from the change of reflecting point of the sky wave signal during the disturbed ionosphere condition. 在上海区域内,这种影响达到峰值的时刻比食甚时刻延迟了约30分钟,这是处于扰动电离层状态中天波反射点变化的反映。
Because the perturbation requirements are not needed in numerical solution, it reflects the general quantitative relationship between the disturbed amplitude and the propagated distance of shock front under condition of finite disturbance and larger viscosity, and can be applied to analyse more complex flows. 2. 由于本文数值解不受上述条件限制,所以本文得到了有限扰动振幅和强粘性条件下的冲击波阵面扰动振幅与传播距离之间的定量关系,并可用于分析更复杂的流场。
However the attention of persons is easily disturbed by outside condition also persons are easily get tired because of continuous working, the reliability of check results is hard to assure. 而人的注意力往往容易受到外界各种条件的干扰或因连续工作而产生疲劳,因此检查结果可靠性难以保证。
Disturbed by the wave and wind, the sailing ships have six degrees of freedom motions. When the condition is bad, rolling has the largest effect of the six degrees of freedom motions. 海上航行船舶受到海洋风浪流干扰后,将产生六个自由度运动,其中横摇运动对船舶的影响最大。
Nowadays, there is so much method to special railway safety evaluation, but most of them are not only having a few limitations but also are qualitative evaluation, so the accuracy of results vulnerable to disturbed by physical condition. 当前,对铁路专用线安全评价的方法有很多,然而多数评价方法都有一定的局限性,并且大多都是进行定性评价,结果的准确性容易受到实际条件的干扰。
The optical route of HRS is relatively comprehensible, but the HRS signal is easily disturbed. Therefore, the experimental condition is restricted. HRS实验光路相对简单,但是HRS信号容易受到其它因素的影响,因此对实验条件的要求比较苛刻。