查询词典 damping-off

The result indicates that the damping term drastically changes the asymptotic behavior of the hyperbolic equation.

分析结果表明，阻尼项强烈地改变双曲型方程解的渐近行为，强阻尼双曲型方程组的能量E随时间按指数衰减，即E≤Cexp。

In order to select the most appropriate method for the actual situation at the South China Sea, this paper designed models and used data from some region in the South China Sea to compare four RTP-L methods (the hyperbolic sine method, the suppression RTP filter method, the direct damping method and the pseudo-inclination method) in the wavenumber domain which change the RTP operator.

本文针对其中4种在频率域对化极因子做处理的方法(双曲正弦法，压制因子法，直接阻尼法，伪倾角法)，设计模型进行对比，并用南海某地区的实测数据进行4种方法的化极效果对比，选出一种最符合南海地区实际情况的化极方法。

Moreover, the life span of blow-up solution is estimated. Chapter4 is for the Cauchy problem of hyperbolic system with weak damping.

在第四章，我们研究一类弱阻尼非线性双曲型方程组的Cauchy问题。

There is the Cauchy problem of hyperbolic system with weak damping in Chapter4. In the space of dimension N=1,3, exploiting the semigroup method, the global existence and the decay behavior of the solution with small initial data to problem (about problem with small initial data) is put forward.

当空间维数N=1，3和初值充分小时，利用半群理论得到问题整体解的存在性，并对于整体解给出一致衰减估计；当空间维数N=1 时，利用试验函数方法讨论解在有限时刻爆破的条件。

The results indicate that its dynamic stress-strain curve is hyperbolic type. The dynamic strain of LCES decreases with increasing confining pressure, cement content, curing ages and cyclic loading frequency when it is subjected to the same dynamic stress. At the same dynamic strain, the dynamic secant elastic modulus E_(sec of LCES increases and the damping ratio decreases with increasing confining pressure, cement content, curing ages and cyclic loading frequency. The curves ofσ_d～ε_d,E_～ε_d and D～ε_d with different EPS content intersect respectively, the trend of LCES deformation characteristic is inversely proportional to EPS content near the intersection. The value of dynamic strain at the intersection is about 0.5%~3.0%, the magnitude of which is related to the mixing proportions and confining pressure.

试验结果表明，LCES的动应力应变骨干曲线形态符合双曲线；在相同的动应力作用下，LCES产生的动应变随着固结压力、水泥掺量、试样养护龄期和振动频率的增大而减小；在动应变相同的情况下，随着固结压力、水泥掺量、试样养护龄期和振动频率的增大，LCES的动模量增大而阻尼比减小；随着加载次数的增大，LCES的动模量在开始阶段显著降低，然后趋于稳定，但当加载次数达到几百次时，动模量又有增大的趋势；不同EPS掺入比的LCES的动应力应变骨干曲线、动模量随应变变化曲线和阻尼比随应变变化曲线都发生了相交，交点前后EPS掺入比的大小对LCES动力变形特性的影响趋势是截然相反的，交点处的动应变值一般在0.5％～3.0％范围内变化，其大小与LCES的配比以及固结压力有关。

With import pressure relief valves, pilot vavel disc role in the fluid pressure Fx attendant increase, when more than equal to Fx Pt2, pilot valves valves mouth opened, the pressure relief valves to import oil by damping hole, Pilot valves valves mouth overflow relief valves to export, and then back to the fuel tank.

随着溢流阀的进口压力增大，作用在先导阀芯上的液压力Fx随之增大，当Fx大于等于Pt2时，先导阀阀口开启，溢流阀的进口压力油经阻尼孔、先导阀阀口溢流到溢流阀的出口，然后回油箱。

With import pressure relief valves, pilot vavel disc role in the fluid pressure Fx attendant increase, when more than equal to Fx Pt2, pilot valvesvalves mouth opened, the pressure relief valves to import oil by damping hole, Pilot valves valves mouth overflow relief valves to export, and then back to the fuel tank.

随着溢流阀的进口压力增大，作用在先导阀芯上的液压力Fx随之增大，当Fx大于等于Pt2时，先导阀阀口开启，溢流阀的进口压力油经阻尼孔、先导阀阀口溢流到溢流阀的出口，然后回油箱。

In this case, the existing design criterion of the damping resistor will be inapplicable.

这种情况下，现有的阻尼电阻设计标准将不再适用。

The inconsistent equations may be formed with the surveying data of the GPS network of monitoring crustal movement and deformation on the continent of China in 1994 and 1996, and by using the damping method of least squares and the interative computing method, the parameters of crustal movement and deformation can be obtained.

利用全国网1994年和1996年的两期GPS观测数据，组成矛盾方程组，应用阻尼最小二乘方法，经迭代解算，得到所需要的地壳运动与形变参数。

It contains cross-study of basic theories of multiple subjects like the inertia balance of variable-mass rotation body under the rotating of accelerating, uniform, decelerating and varying accelerated and resonance, patting, damping and lagging caused by its vibration.

壳桶合一洗衣机避振系统的研发，看似简单实则复杂，它涉及了圆周运动、摆动、动平衡、陀螺效应、流体力学；变质量旋转体在加速、匀速、减速、变加速的转动中的惯性平衡及其振动产生的共振、拍、阻尼、滞后等等多学科基础理论的交叉研究，还需要通过大量定性模拟试验与定量实体实验，并对试验结果进行分析、优选、论证以及对其可靠性的证实等长期复杂的科学研发过程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。