有困难

When initial point is an interior point in the box, the global convergence of the method is proved.

带箱约束的非凸非线性规划有许多不同的应用，但由于它的计算复杂性，一般来说求解十分困难。

Fifthly, in order to overcome the difficulties and drawbacks of existing methods of input variable selection, a general engineering selection method is presented and implemented.

第五，针对已有模糊模型的输入变量选择方法的困难与缺陷，本文提出并实现了一种具有通用性的工程选择方法。

We can do many interesting experiments in science class. That's why we like science class very much. However, some experiments are difficult and dangerous. For example, something acid and alkaline will erode our body. Besides, indicators are very dangerous. So, be very careful to do any experiments inscience class! This is our experiment in science class.

我们喜欢上自然课，因为上自然课可以做实验，我们的自然实验有些有趣，有些困难，不过全都非常好玩，可是有些实验会使我们得生命有危险，像水溶液实验，因为酸、碱性的水溶液，会是我们的身体腐蚀，指示剂也非常危险，所以做实验要非常小心，以上就是我们的自然实验。

Insuperable difficulties, as it seems to me, prevent from coming to any just conclusion on this head

可是依我的意见，似乎尚有不可克服的困难，足以阻碍我们对于这个问题作出任何恰当的结论。

As a result, if it is in the same bank loans, it is necessary to transfer the mortgage, there may, in the case of interbank operations, on a lot of difficulty.

因此，如果它是在同一银行贷款，就必须转移抵押贷款，有可能，在同业业务，对许多困难。

"It's hard enough facing a No. 1 you get to see a lot," said Arizona left fielder Eric Byrnes (1-for-4). Facing a No. 1 in interleague play, when you never get to see the other guy, it's tough.

响尾蛇左外野手Eric Byrnes(4打数1安打)说：「对战面对很多次的王牌投手已经有够难了，但在跨联盟比赛里遭遇没碰见过的王牌先发，那就更困难了。

They need, however, present no difficulty if we believe in the possibility of God's miraculous interposition in behalf of his people.

他们需要，但目前没有任何困难，如果我们认为有可能在上帝的奇迹般的干预在代表他的人民。

There was blood on the laryngoscope, common in difficult intubations.

喉镜上有血，在插管困难时是很常见。

Nasal tracheal intubations by the GlideScope were successful on 17/20 occasions, including 8 of the 11 difficult laryngoscopy.

有17位的病患可以藉由使用GlideScope达成成功的气管插管，其中包括了8位原本是属於困难插管的病患。

Reference between CST and CSGC is a little difficult, but it is possible only the characteristic be hold, data possessed, representative be had in mind, and queried inturn.

发生分类和系统分类之间的参比有一定的困难，但只要把握特点、占有资料、着眼典型、依次检索还是可行的。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了