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The original desulfurizing process used hydramine solvent to deprivate most H2S, then carried out alkali wash and water wash. But organosulfur removal was so difficult that individual qulity data of liquid gas were instability and below grade, such as copper sheet corrosion. Furthermore, treatment of alkali residue was very difficult.

装置原采用醇胺溶剂脱除大部分H2S后再采用碱洗、水洗工艺，有机硫难脱除，液化气个别质量指标如铜片腐蚀不稳定，经常不合格；同时碱渣的处理也较困难。

Firstly, some difficult problems required to be solved,such as the land surface parameters′ calculation and observation over inhomogeneous land surface and development similarity theory which can be applicable to the inhomogeneous land surface. Secondly, studies of the bulk transfer coefficients over humid regions of China must be strengthened. Thirdly, whether or not understanding the landatmosphere interaction process over inhomogeneous and complicated land surface in its entirety, the land surface parameters′ expandedness form local to regional scope is a critical and difficult problem.

在此基础上，探讨了该领域研究中存在的几点科学问题：①需要解决非均匀下垫面地表参数的计算和观测以及发展适用于非均匀下垫面的相似性理论等难题；②对我国湿润地区地表总体输送系数的研究需要加强；③能否对非均匀复杂下垫面陆气相互作用过程进行全面的认识，地表参数由&点&到&面&的推广是关键也是难题。

But the bitter " of " difficult character of the man is not an isolated symptom absolutely, actually, the around of the bitter " in difficult character of occurrence male ", tired of the lumbar genu aching and limp that brings about by kidney empty, mind exhausted body, dazed tinnitus, bosom is fuggy short, insomnia make water of forgetful, frequent micturition tine of drop of drop of urgent, make water, deal with an offender shakes, limb cold Wei is cold wait for all sorts of symptoms to be able to appear in succession, must solve these anguish at the same time.

但男人的%26ldquo；难言之苦%26rdquo；绝不是一个孤立的症状，实际上，在出现男性%26ldquo；难言之苦%26rdquo；的前后，由肾虚而导致的腰膝酸软、神疲体倦、头昏耳鸣、胸闷气短、失眠健忘、尿频尿急、尿滴沥、发落齿摇、肢寒畏冷等各种症状便会相继出现%26mdash；%26mdash；%26mdash；解决男性的%26ldquo；难言之苦%26rdquo；，必须同时解决这些痛苦。

The results show that jamesonite and pyrrhotite have good floatability in the pH range of 2-10 and marmatite has good floatability in the acid and it is difficult to separate these minerals. In the pH range of 6-8, the separation of jamesonite and pyrrhotite, marmatite is possible when using mercaptoacetic acid and mercaptoethanol as depressants. In case of the presence of Cu2+ ion, however, it is difficult to separate the three minerals. Infrared spectrum demonstrates that there are a number of function groups such as —SH,—COOH,—OH in the molecular structure of depressant.

结果表明：用丁黄药作捕收剂，脆硫锑铅矿和磁黄铁矿在pH 2~10范围内都有良好的可浮性，铁闪锌矿在酸性条件下可浮性好，三者分离困难；在pH 6~8之间，采用巯基乙酸和巯基乙醇作抑制剂，脆硫锑铅矿与磁黄铁矿和铁闪锌矿的分离是可能的；但铜离子存在时， 3种矿物之间的选择性分离是难以实现的。

It analyzes the reasons for the difficult position, points out the way to go out of the difficult position, the way to strengthen the study of res judicate and the way to give impetus to judicature and the social populace to enhance the concept of res judicate.

建议我国借鉴大陆法系国家关于既判力的较为成熟的立法实践，在立法上对既判力进行明确界定。

Life was always difficult for Klom and her family, but summer was the least difficult time.

the most 生活对于Klom和她的家人来说通常很艰苦，但是夏季时最不困难的时候。e.g。最不重要的

Although many predictors of a difficult laryngoscopic intubation have been developed, they all have low positive predictive values, and thus the unanticipated difficult laryngoscopic intubation will continue to occur in our day-to-day practice for the foreseeable future.

虽然已经有许多预测困难喉头镜插管的指标被提出，但是其正向的预测值皆很低，也因此在可见的未来未预期性困难喉头镜插管仍然会在日常的工作中发生。

It has been a difficult problem to figure out efficient methods in treating coking plant wastewater because the degradation is difficult. Homogeneous Fenton reagent is one of oxidation methods which applies H_2O_2 as oxidation and Fe~(2+) as catalyst. In reaction,·OH is one of free radicals with excellent oxidizability.

Fenton试剂法是一种采用过氧化氢为氧化剂、以亚铁盐为催化剂的均相催化氧化法，反应中产生的·OH是一种氧化能力很强的自由基，能氧化废水中有机物，从而降低废水的色度和COD值。

According to the rudiment epidemiological investigation in our country. The ratio of male to female is 1:3. RA regardless of for traditional Chinese medicine or Western medicine, is still a kind of difficult treat disease. Major is the cause of this disease with pathologyical mechanism lack all-sidely thorough understanding, and lack peculiarness laboratory index in the early stage of disease, so early diagnosis is very difficult.

我国经过初步流行病学调查，RA发病率为0.3～0.5%，男女发病比例约为1：3，西医对本病病因和发病机制认识尚欠清楚，缺乏具有针对性的特效药物；虽然据临床报道中医药对RA具有良好的治疗效果，但由于RA的中医证候分类繁多，目前尚无统一证候分类标准，临床疗效观察缺乏可重复性，严重制约了中医对RA研究的深入开展。

In recent years, the stretcher bars flower survival, development of basic changes in society, some quite accomplished stage veteran artists gradually quit or die, and some skills difficult to obtain transmission and development, carried flower development Periploca difficult to save much-needed protection.

近年来，抬花杠赖以生存、发展的社会基础发生变化，一些颇有造诣的老艺人逐渐退出舞台或谢世，有些绝技难以得到传承和发展，抬花杠的发展举步维艰，亟需抢救保护。

Great. What repertoire did you see?

太棒了。你看的是什么剧目？

I prepared not to accept such ridiculousness:"Please," I said to him.

我可不想理会这套荒谬的东西："请你通情达理一点儿。"