consider the abelian integral for a non-hamilton system with quadratic perturbation and get that the lowest upper bound of the number of zeros of the abelian integral is 2. also, some sufficient conditions for the unique zero of the abelian integral are obtained.

for the former, it is proved that the system under the polynomial perturbations has at most [ n/ 2] limit cycles in the finite plane and the upper bound is sharp. the proof relies on a careful analysis of a related abelian integral.

第四章考虑了两类可积非哈密顿系统，对于其中的一类得到了有限平面内在n次多项式扰动下分支出的极限环的个数的上确界是[n/2]。

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in this paper, a method of finding stable approximate solution of nonlinear abelian integral equation is given by using regularization method.

本文利用正则化方法给出了非线性阿贝耳积分方程稳定近似解的求法。

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modification of electric control system on domestic mining motor wheel haulers

国产矿用电动轮自卸车电控系统的改造

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queuing theory based optimal disposition of dump haulers in high-class asphalt pavement construction

基于排队论的高等级公路沥青路面施工自卸车的优化配置

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today's biggest haulers can carry 400 tons. that is the weight of about 243 medium-sized cars.

当今最大的矿山车能装载400吨货物，相当于大约243辆中型汽车的重量。

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this design is favored for severe-ser-vice applications, such as dump trucks, cement mixers, and other heavy haulers.

这种设计师用于非常规服务用途的车辆，例如自动倾卸卡车，混凝土搅拌车等其它重型运输车。

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teens may wind up driving family haulers like suvs because it's the vehicle their parents have handy to lend.

孩子们可能会经常开家里用来运送大件东西的SUV，因为这是他们父母手头闲置的车。

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commercial or contract haulers of dead carcasses may introduce another disease from some other ranch outbreak.

商营或承包的尸体运输机构，有可能从某些牧场引进其他疾病。8.Coal miners; coal seams; coal haulers.煤矿工；煤层；运煤工。

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unlike the little mg convoy, haulers would often only travel part of the way.

不同于MG小车队，运输商往往只行经旅途的一小段。

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for a really excellent set of product reviews, read offspring haulers.

如果需要优秀的成套产品的评论，请阅读“孙子搬运工”一文。

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heavy haulers are especially good testbeds because they're large enough to carry the pumps and tanks the system needs to run.

重型货车是特别不错的实验台，因为这些车辆能携带系统需要运行的汽油加油泵和油箱。

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but even with all the huge log- haulers barreling around the turns, mostly people walked away.

尽管有巨大的拉木机树立在拐弯处，但多数人选择绕开这条路。

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here, china's coal haulers say, the same trip generally requires up to three days' travel, including weight checks and unloading coal.

这里的运煤车司机则说，同样的路程通常需要三天的时间，包括过秤和卸煤。

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at the back entrance on 35th street, awaiting trash haulers, were bags of garments that appear to have never been worn.

在35街的后门入口处，还有一些袋子在静候着垃圾搬运工，这些袋子里装的都是未经穿着的衣物。

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stick shifts, on the other hand, is very simple, and requires you (the driver) to know what you are doing.

然而，手动挡结构却非常简单，要求您（驾驶员）了解您该做什么。

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nrc; national register of anti-apartheid measures;

全国反对种族隔离措施登记处；

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liaison group of the anti-apartheid movements in the european union;

欧洲联盟反对种族隔离运动联络组；

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general assembly of african anti-apartheid committees and movements;

非洲反对种族隔离委员会和运动大会；

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anti-apartheid, decolonization and palestine programmes section;

反对种族隔离、非殖民化和巴勒斯坦方案科；

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the anti-apartheid movement was much bigger than one man.

反种族隔离运动远远大于一个人。

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