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The sunflower Alternaria black spot is a very important fungal disease, which was first reported in China during the 1960s. It is still a potential threat to sunflower production at present.

向日葵黑斑病是一种重要的真菌病害，我国于20世纪60年代首次报道，目前对向日葵生产仍存在巨大威胁。

I'll also present 2 alternate ideas on dealing with global development teams to elicit further discussion.

我还将提出关于全球开发团队处理得到进一步的讨论2候补想法。

The present form of power systems would be impossible without alternating current.

若没有交流电也就不可能有目前形式的电力系统。

The numerical ex-periment has shown that the number of iterations depends significantly on the positiveparameterα,β. But, in general, it is di?cult to choose a proper parameterα,β. Thuswe propose new self-adaptive alternating direction method which adjusts the scale pa-rameter automatically per iteration based on the message of the iterates. We have provedthe convergence of the method under mild assumptions.Finally, we present some numerical results.

对于我们提出的新交替方向法，数值实验表明，迭代的步数与时间与所取的参数α，β有关，然而我们很难去选择一个合适的参数α，β，因此我们提出新自适应交替方向法，对其中的参数α，β进行自适应调整，这种自适应算法根据每步迭代信息自动地调整参数α，β，并证明了算法的收敛性。

The Prologo for the Colombian edition is being written by a dear friend here, who is a "star" in the alternative medicine field. He has two clinics now and his patients are from the cabinet of the Present Presidential administration.

亚伦比亚译本的序言是我这里一个亲密的朋友所写的，他也是一个在"替代医学"领域极负盛名的专家，他目前有两个诊所，他的病人有的是本届总统府内阁成员。

In truth, however, our present altruistic attempts can only be within the framework of according to one's means and conditions.

"说实话，但是，我们目前的利他主义的企图只能是框架内的"根据自己的手段和条件。

At present, the research is focused more on the system of aluminate than silicate.

目前，研究主要集中在铝酸盐体系，对硅酸盐体系的研究较少。

In the present paper, based on the thorough analysis and research of the mathematical model for the flow field and temperature field, the filling and solidification process of aluminous hub was successfully simulated by using ANSYS software.

本文以大型有限元仿真软件ANSYS为工具，在对铸造过程流场、温度场的数学模型进行深入分析研究的基础上，成功的模拟了铝合金轮毂类铸件低压铸造的充型凝固过程，并根据模拟结果对铸件可能产生的缺陷及部位进行了预测，完成了利用ANSYS软件来检测、校核模具设计和工艺安排的工作。

The present invention is preparation process of nanometer aluminum hydroxide and belongs to the field of inorganic compound preparing technology.

本发明涉及一种纳米氢氧化铝的制备方法，属无机化合物制备工艺技术领域。

Simultaneously had pointed out flocculant subject matter which and present development direction faces in the aluminum oxide production industrial application.

同时指出了絮凝剂在氧化铝生产工业应用中面临的主要问题和今后发展方向。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。