查询词典 three-body problem

Based on the upper and lower solutions method,under suitable conditions,existence of solution of a three-point boundary value problem forthird-order ordinary differential equation with nonlinear mixed boundary conditions is obtained.

基于上下解方法，在一定条件下，得到了一类带有非线性混合边界条件的三阶常微分方程的非线性三点边值问题解的存在性，作为上述存在性结果的应用，在推论中给出了一类三阶非线性微分方程三点边值问题解的存在性。

A three-point boundary value problem for a semi-positone second-order differential equation is investigated.

研究了一类半正二阶非线性常微分方程的三点边值问题u +λf =0 ，u′(0 )=0 ，u(1 )=αu ，利用Krasnosel'skii不动点定理得到了正解存在的一个充分条

To solve the problem, a three-point bending test was put forward.

中文摘要：针对以Q450NQR1钢为基板、B级钢为腹板模拟实际工装位置，疲劳断裂与货车运营实际工况不符的问题，提出以B级钢为基板、Q450NQR1钢为腹板进行三点弯曲疲劳试验，诱使疲劳裂纹向B级钢侧扩展，研究了MAG气体保护焊B级钢/Q450NQR1钢搭接接头的疲劳性能。

Existence Result for Semipositone Second-Order Three-Point Boundary Value Problem

利用不动点指数结合平移变换的方法，研究了一类四阶奇异半正边值问题，得到了其C~2[0，1]∩C~4(0，1)正解存在的一个新结果。

three-point boundary value problem,positive solution,cone

本文主要讨论四阶三点边值向题{U&'&'一f'，&('&+g'，&('&，'eo，''，Lu(0=au，u=0，aull一月u，，，(0)=0，7ull(1)+叙邢(1)~0，其中。0，在了，g同超线性，或一超线

The three-phased half-controlled bridge commutation and stabilizing voltage adjuster of permanent-magnet generator , which is also a rectifier, wastes a little electricity power and outputs high efficiency , makes it generate stable direct circuit, solves vehicle's problem of generating stable voltage at variable speed and variable load.

永磁发电机三相半控桥式整流稳压器集稳压、整流于一体，电能消耗少，发电效率高，输出直流电压稳定，解决了汽车用永磁发电机在变转速、变负载工况下输出电压保持稳定的问题。

There is also the fear that with contemporary HD DVD playerthe three-layered disks will be incompatible (bilateral approach, let us note, this problem will be solve easily).

也有担心，与当代HD DVD播放器的三个层次的磁盘将不相容（双边的办法，让我们注意到，这个问题将很容易解决）。

There is also the fear that with contemporary HD DVD playerthe three-layered disks will be incompatible (bilateral approach, let us note, this problem will be solve easily).

还有一种担心与当代的DVD播放房屋三层盘将不相容(双边办法我们注意到，这个问题将很容易解决)。

The course will be graded on the basis of five problem sets and a three-hour final exam.

本课程将根据五个问题集和一个三小时的期末考试进行评分。

In ALE formulation the fluid-structure interaction analysis becomes a three-field coupling problem of the fluid field、the solid field and the fluid dynamic mesh.

其次，流体N-S方程的求解有中间速度法的三步减为直接法的两步，提高了计算效率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。