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Today we can only imagine about our first teacher who blames us may only just for an unnamed case through the survival of our childhood's memory ,also,it is hard to find such a kind of feeling to describe my heart when I obtain high mark in my middle school's time,cause we will never know there are so much frustration in our future,we really miss too much mirth which should belong to us, before the boom is found,the vernal flower has been seared stealthily ,and our college's time is also fleeting within a seirous of chemic reactions,similarly ,it is difficult to remind you of some rememberable things,even if we have been moved by him at that time,what's more,and many close buddies yesterday whose silhouette is being becoming darker and darker...

现在的我们只能通过儿时残存的记忆，大概的猜出第一位批评我们的老师，可能仅仅是为了一件说不出名的小事；也很难找到一种情怀来形容中学时代取得一系列傲人成绩的心情了，因为那时的我们永远不会知道，今后的路途如此的坎坷，我们实在是错过了太多原本属于我们的欢笑，青春的花朵在我们还没有察觉到它开放时就悄悄的枯萎了；我们的大学时光也在一系列化学反应中飞逝着，很难记起一些值得记起的事情来，哪怕当时你曾经为他会心一笑；还有那么多曾经在身旁出生入死的好兄弟，他们背影也开始变的模糊起来。。。

But 5-helix was apt to form inclusion body when expressed directly in prokaryotic cell and was difficult to renature, which causes inconvenience to future study.

但5-helix基因在原核细胞中直接表达时易形成包涵体，复性困难，给研究带来不便。

In chapter 1, the progress in study of the ruthenium complex oxides. especially the coexistance of magnetism and superconductivity in 〓 and 〓 are introduced. The introduction makes conclusion that all of the Ru-1212 and Ru-1222 compounds reported are accompanied by small amounts of SrRuO〓 impurities, this is to say that, it is difficult to synthesize pure samples of these two compounds by traditional solid state reaction. So the author think that the studies for new synthesis methods of ruthenate superconductors which is beneficial to the synthesis of new type precious metals superconductivity is very important till now.

第一章重点综述了钌系复合氧化物的研究进展，特别是其中超导电性的发现及其钌系1212、1222相铜氧化物超导电性和铁磁性共存的特征，在此基础上可以看出，至今文献报道所获得的Ru-1212和Ru-1222相化合物都含有少量的SrRuO〓杂相，即很难通过原有的固相反应方法得到纯相化合物，由此作者提出，现有钌系超导氧化物合成的新方法研究仍具有重要的现实意义，这也将更有利于探索合成新型贵金属超导体。

Huqiu imaging technology co., Ltd. and then press the original plan to clean up the input signal is detected, all of its input signal, but due to market AC110V seathe difficult to purchase to AC110V for the input signal of Mitsubishi Corporation PLC the relays do AC110V signal conversion available, this problem is corrected.

虎丘影像科技有限公司再按原图积压不不不输出暗记时发不隐，其不不不输出暗记残为AC110V，但因阛阓不常难购到以AC110V为不不不输出暗记的不一菱公司的PLC，所以拔取AC110V的继电器怠工暗记不停换用，此题目得以处置。

Because it is difficult to realize reconciliation between sects, it is hard to abolish sectarism system and impossible to establish real parliamentary democracy, and Lebanese nation-building will be confronted with mountains of difficulties.

由于教派和解难以实现，教派分权制也难以废除，真正的议会民主制也因此无法确立，黎巴嫩民族国家建构之路将依然面临重重困难。

Moreover, Chinese modern history has always been described as semifeudalism and semi-colonialism. Against this historic background, it is difficult to understand the material and cultural views described by the writers of Shanghai School in that prosperous metropolis, nor the contradictory mood of hatred and nostalgia these writers felt when they were"sadly"waving goodbye to the metropolis that was falling to its destruction in the shadow of war.

而且，在一向把中国近代史概括为半封建半殖民地性质的历史大叙述中，也难以理解和认识海派作家笔下的那个繁华的现代大都市的物质景观和文化景观，以及在战争的阴影下，人们预言着这个繁华的大都市的毁灭，向它做着&苍凉的&告别手势时，决绝与依恋同在的矛盾心境。

The results show that in the case of {1 0 0}, the morphology of crystal changes from lowtemperature sheet to hightemperature tower with increasing the synthesized temperature, whereas in the case of {1 1 1} the change trend is contrary to {1 0 0}. When {1 1 1} facet or {1 1 1} was used as the growth facet, the sheetlike crystal is more difficult to incorporated for the metal inclusion regardless of synthesized temperature. With NiMnCo metal as solvent, large highquality gemgrade diamonds can also grow on {1 1 1} facet with proper temperature gradient.

结果表明：随着合成温度的升高，用{1 0 0}面生长出的晶体形貌由低温片状逐渐过渡到高温塔状，而用{1 1 1}面生长出的晶体形貌变化趋势则相反；采用籽晶{1 0 0}面或{1 1 1}面生长晶体，无论合成温度高低，包裹体都不容易进入片状晶体内部；只要存在合适的温度梯度，NiMnCo触媒同样适合利用籽晶{1 1 1}面生长优质大尺寸宝石级金刚石（≥4 mm）。

Because of the computation load and the implementation complexity of full rank STAP are too great to be accepted and it is really very difficult to obtain enough samples to estimate the covariance matrix.

最初提出的是使用全部空域和时域进行处理的全时空的最优算法的计算量和实现的复杂度令人们难以接受，并且难以获得估计协方差矩阵所需的足够的样本数，后来的研究重点就转移到了降维处理算法上。

New practitioners can find samadhi difficult to maintain, and also don't like to be alone for days at a time. Also tanha arises and they become restless. They crave tranquility or they want to be happy, to see pleasant objects.

初学者会发现定很难维持，也不喜欢一次好几天独处，当贪爱来的时候，他们也会变得不安，他们渴望平静，想要快乐或看到快乐的事物。

Any chlorine residues in the water may react with organic compounds to form harmful by-products such as trichloromethane that are difficult to remove and are known to be cancerous.

再者，水中的有机物质与氯产生化学反应后会形成有害化合物，如三卤甲烷，这些难以清除的化合物更被确定为致癌物质。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。