借助

In Chapter 6, by using the matrix models of 3-dimensional Minkowski space R〓, first we study deformation properties and integrablilities on spacelike surfaces with a harmonic inverse mean curvature and timelike surfaces with a Lorentz harmonic inverse mean curvature.

在第六章中，首先借助三维Minkowski空间R〓的矩阵模型，研究了R〓中具有调和逆平均曲率的类空曲面和洛伦兹调和逆平均曲率类时曲面的可积性及其形变。

Finally, Harriet Tubman escaped to the North on ... Railroad.

最终，哈里特借助地下铁路逃到了北方。

Nero knew how to gain alliances and with his Spanish allies managed to defeat Hasdrubal Barca and push him out of the small Roman occupied area of Spain.

尼禄清楚如何结盟，借助西班牙盟友，他击败了哈斯德鲁巴。巴卡，并把后者从罗马占据的一小块地盘上驱逐出去。

"If you can't find the right job, maybe a headhunter can help."

如果你找不到适合的工作，也许可借助於猎才顾问公司。

This operation requires the aid of an artificial heart-lung machine .

这种手术要借助一种人工心肺机。

Finally, the typical procedure to perform quantitative thermal design of heat sink with HSDS is provided.

最后，给出了借助所开发的HSDS仿真软件进行热沉热设计的一般步骤。

And consider this evocation of rampant adolescent horniness from The Marriage of Figaro . Ardor, agitation, heedlessness, exhilaration, confusion, raging hormones: It's all there, and in an irresistible melody of melting beauty.

还有《费加罗婚礼》所唤起的狂野青春，无论激情、冲动、幼稚、欢乐、困惑、愤怒，都借助一种无法抵抗的优美旋律加以展现。

Chapter 2 establishes a helicoid model of the 3D curved shock surface, which is a fundamental means for investigating the sweep of the 3D shock surface In chapter 3, the first step is to make definitions and detail concepts about various viewpoints of shock surface sweep. Secondly, those sweep angles of the 3D shock are calculated. After that, with the aid of the helicoid model, two general structure similarity variables are derived which are independent of any model, and their importance in shock structure investigations is discussed.

第三章首先给出激波曲面掠的各种基本概念，计算相应掠角；又借助螺面模型得到一般性的掠相似参数，并分析了它在激波结构研究中的意义，设想了激波气动掠参数的测量方法；第四章依据螺面模型探讨了前缘曲线掠与前缘激波曲面掠的关系，可能存在的均匀激波曲面、简单非均匀激波曲面和它们的运动学设计方法，其中得到一些很有用的概念。

The fatigue is analyzed for the SENT specimen of TA6V titanium alloy at different stress ratio and on different stress level by the general finite element analysis software ANSYS. The dangerous fatigue location is predicted by the nodal stress Y-direction of the hemicycle notch for TA6V titanium alloy SENT specimen. Based on the local stress-strain method and the material S-N graph, the nominal stress-strain of the specimen is converted to the local stress-strain of the dangerous location by the elastic and plastic finite element analysis, thus the fatigue life is estimated by Miner fatigue damage accumulation theory and compared with the fatigue test of small crack growth.

借助大型通用有限元分析软件ANSYS对TA6V钛合金SENT试样在不同应力比和不同应力水平下进行疲劳分析，根据SENT试样缺口处的应力状态分布预测疲劳危险部位，采用局部应力应变法，结合材料循环的S-N曲线，通过弹塑性有限元法将构件上的名义应力谱转换成危险部位的局部应力应变谱，从而根据危险部位的局部应力应变历程采用Miner累积损伤理论对构件的疲劳寿命进行估算，并与疲劳小裂纹试验数据进行比较分析。

The mechanism of crystallization of flue gas desulfurization sludge waste into α form calcium sulfate hemihydrate through differential scanning calorimetry is obtained.

借助差示微分扫描量热仪等分析手段，得出了溶液结晶法从烟气脱硫残渣中制备α型半水石膏的结晶机理：烟气脱硫石膏首先经过脱水生成β型半水石膏，再由β型半水石膏转化为α型半水石

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。