在前面

The abstract result contains several concrete results in the literature and can also be used to deal with some new cases for resonant differential equations.In the introduction, we briefly introduce the development process of the variational methods. In Chapter 2, we list some basic knowledges refering to the variational methods, including the Sobobev space,—△ operator, the weak solution and the minimizing sequence methods and some minimax theorems. In Chapter 3, we introduce the research process of Hamiltonian system of second order and the semilinear elliptic problems, using the methods introduced previously. In Chapter 4, we prove the main theorem of the thesis, and apply it to the problems in the previous Chapter, and can also be applied to some new resonant cases.

在前言中，简要介绍了变分法的产生、发展过程，在第二章中我们介绍了有关变分法的一些基本知识，包括Sobolev空间，—△算子，弱解，极小化序列方法和一些极小极大定理，在第三章中我们介绍了非线性项有界或满足次线性条件，以及它满足推广的Ahmad-Lazer-Paul条件时，二阶Hamiltonian系统和半线性椭圆问题的研究历程，最后在第四章中我们证明了本论文的主要定理，并把它应用到第三章的问题中，使得前面的几种共振的情形都可以统一到这个抽象的结果中。

Let us therefore consider a master of a family with all these subordinate relations of wife, children, servants, and slaves, united under the domestic rule of a family; which, what resemblance soever it may have in its order, offices, and number too, with a little common-wealth, yet is very far from it, both in its constitution, power and end: or if it must be thought a monarchy, and the paterfamilias the absolute monarch in it, absolute monarchy will have but a very shattered and short power, when it is plain, by what has been said before, that the master of the family has a very distinct and differently limited power, both as to time and extent, over those several persons that are in it; for excepting the slave (and the family is as much a family, and his power as paterfamilias as great, whether there be any slaves in his family or no) he has no legislative power of life and death over any of them, and none too but what a mistress of a family may have as well as he.

所以，让我们在家庭规则之下来考虑家庭的主人与所有妻子，孩子，仆人和奴隶的从属关系；家庭，无论在它的秩序，各种职务以及人数方面多么的类似于一个小国家，然而在它的构造，权力和目的方面与国家是相去甚远的：或者如果一定要把它想成一个君主国，家长是绝对君主的话，这个绝对君主国也仅仅拥有零碎和短暂的权力，因为根据前面的论述，很明显：家庭主人对其余人的有限权力，无论在时间上还是在范围上与君主的权力都是截然不同的；因为除了奴隶，他没有对任何人的生命和死亡拥有立法的权力，女主人也同样没有。

As they approached the Piazza del Popolo, the crowd became more dense, and above the heads of the multitude two objects were visible: the obelisk, surmounted by a cross, which marks the centre of the square, and in front of the obelisk, at the point where the three streets, del Babuino, del Corso, and di Ripetta, meet, the two uprights of the scaffold, between which glittered the curved knife of the mandaia.

当他们接近波波罗广场的时候，人群愈来愈密了，在万头攒动的上空，可以看到两样东西，即方身尖顶的石塔，塔顶上有一个十字架，标明这是广场的中心和耸立在石塔前面，耸立在巴布诺街，高索街，立庇得街三条路的交叉口上的断头台的那两根直柱，在这两根直柱之间，悬挂着一把闪闪发光的弯刀。

At the start, I was in Alonso's slipstream and I thought I was safe in second place as I could not see anything in my mirrors, but then luckily, I realised that Felipe was coming alongside me very quickly, but I managed to stay ahead.

在开始的时候，我跟在阿隆索后面，感觉自己可以稳拿亚军，因为我从后视镜中看不到任何东西，接着很幸运，我知道菲利普在后面紧紧跟着我，不过我还是跑在了前面。

Thus, Tellson's, in its day, like greater places of business, its contemporaries, had taken so many lives, that, if the heads laid low before it had been ranged on Temple Bar instead of being privately disposed of' they would probably have excluded what little light the ground floor had, in a rather significant manner.

这祥，台尔森银行便在它存在的日子里，跟它同时代的更大的企业一祥夺去了许多人的性命。若是在它前面落地的人头不是悄悄地处理掉，而是排在法学院大门口，它们便可能在相当程度上遮去了银行底层原已不多的光线。

Here.It is for us,the living,rather,to be dedicated to the unfinlished work which they who fought here have thus far so nobly advanced.It is rather for us to be here dedicated to the great task remaining before us-that from these honored dead we take increased devootion to that cause which they give the lastshall not have died in vain-that this nation,under God,shall havea new brith of freedom-and that goverment of the people,by the people,for the people,shall not perish from the earth .

毋宁说，倒是我们这些还活着的人，应该在这里把自己奉献给勇士们已经如此崇高的向前推进但尚未完成的事业；倒是我们应该在这里把自己奉献于仍然留在我们前面的伟大任务，以便使我们从这些光荣的死者身上汲取更多的献身精神，来完成他们已经完全彻底为之献身的事业；以便使我们在这里下定最大的决心，不让这些死者白白牺牲；以便使国家在上帝福佑下得到自由的新生，并且使这个民有·民治·民享的政府永世长存。

The halteres were held in front of the athlete during his ascent, and forcibly thrust behind his back and dropped during his descent to help propel his body further.jump weights also doubled as weight lifting equipment during training.

在运动员起跳时摆在他的前面，然后在落地时用力推向其背后，这样能把他的身体向前推进一步。在训练中跳远负重也像举重一样增加。

Five miles ahead of the retreating army went the refugees, halting at Resaca, at Calhoun, at Kingston, hoping at each stop to hear that the Yankees had been driven back so they could return to their homes. But there was no retracing that sunny road.

这些难民在军队前面五英里处行进，在雷萨卡，在卡尔洪，在金斯敦先后停留了片刻，每停一次都希望听到北方佬已被击退的消息，以便回到自己家里去，可是在这条阳光譇E热的大路上却不见有谁退回的踪影。

Just outside and to the trunk's left is an operational fuel filler door and above the chrome side spear on each of the front fenders are highly polished metal,"Roadmaster" scripts, delicately fashioned in perfect scale.

仅仅在和之外到中继线的左边是一个操作的燃料热隔片门而且在铬上面偏袒在每一个前面的护舷材上的矛是高度擦亮的桥套，& Roadmaster&脚本，细致优雅地在完全的标度中形成。

In that place the edifice was still rising, unshattered; something was still stretching out, the candle was still burning, with a red ring round it; the same shirt-sphinx still lay by the door. But beside all this, something creaked, there was a whiff of fresh air, and a new white sphinx appeared standing before the doorway.

在这一世界里，那座楼阁仍然耸立着，不会倒塌，有一种东西依旧不断地延伸，蜡烛周围带有一圈红晕依旧燃烧着，那件衬衫——斯芬克斯仍旧蜷缩在门边；但是，除开所有这一切，有某种东西在咿呀作响，拂来一股清凉的风，随后，一个新的白色的斯芬克斯，站立着，显现在门的前面。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。