难达到
- 与 难达到 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The gasification efficiency increased and the molar fraction of H2 decreased with an increase in the reaction temperature. The decomposition of PVA was more complete at higher temperatures. At 24 MPa, 500℃ and 120 s, the TOC remove rate, the carbon gasification rate and the hydrogen gasification rate were up to 71.46%, 67.97% and 157.24% respectively. A change in the residence time had no significant effect on the molar fraction of gas production but an increase in the residence time could enhance the gasification efficiency of PVA. It was found that the intermediates were mainly alkane, cycloparaffin, aromatic hydrocarbons, and low-molecular weight acids. It was supposed that PVA was degraded into small molecules through breaking of C-C bonds. Parts of the molecules were converted into H2, CO, CH4 and CO2 while some was converted into aromatic hydrocarbons.
过程探索发现:反应温度的升高能提高PVA气化效率,但气体产物中H2的含量随反应温度的升高有所下降;随着反应温度的升高,PVA分解趋于彻底,在压力24MPa、温度500℃、停留时间120s的条件下,TOC去除率、有机碳气化率和氢气化率分别达到71.46%,67.97%和157.24%;停留时间的变化对气体产物含量没有明显的影响,但延长停留时间能提高PVA的气化效率;PVA气化反应中间产物主要为链状烷烃、环烷烃、芳香烃及小分子酸,根据中间产物出现的顺序推测PVA的降解为由C-C键断裂形成小分子物质,这些小分子物质一部分转化为H2,CO,CH4和CO2,一部分形成难降解的芳香族化合物。
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Now, researches on CHF pathogenesis and treatment have evolved deeply. CHF medication can achieve anticipated curative effect at the early stage, however, which is difficult to have the intended effect for decompensate CHF. Patients with DCHF often emerge oliguria, internal environment disorders and renal failure and died at the end stages.
目前,人类对于心衰的发病机制及治疗的研究已相当深入,在心衰失代偿早期通过药物治疗尚能达到较为满意的疗效,但是对于难治性心衰的患者药物治疗难以奏效,患者往往因顽固性心衰而出现少尿、内环境紊乱、肾功能衰竭而死亡。
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At the same time, some problems were found during separations of 7S and 11S globulin and hydrolysis of soybean. According to the structure of soybean protein, this paper studied the separation methods of 7S and 11S globulin, and a new separating method was put forward: with low-temperature defatted soybean draff as raw material, a technique of alkaline extraction, acidic precipitation and membrane filtering was used.
为了进一步探讨7S和11S两种功能性不同的大豆球蛋白的分离新工艺和方法,以及更好的解决大豆蛋白难酶解的问题,本文从大豆蛋白质原料的结构入手,选择低温脱脂大豆粕为原料,首先研究了7S和11S大豆球蛋白的分离方法,通过几种传统分离方法的比较实验,提出了一种碱提酸沉结合膜分离技术的分离新工艺,SDS—PAGE电泳分析表明碱提酸沉膜分离技术得到的7S和11S大豆球蛋白的相对纯度分别达到75.5%和84.7%,结果均优于传统方法。
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Tube, with fire prevention, heat insulation, non-toxic, noise , acid-resistant, compression, light weight, easy to install features such as, the company strictly implement the relevant national standards, provide customers with high-quality products and services, products have to meet international standards retardant B1 pole, fire performance.
等工业用管,具有防火、保温、绝热、无毒、隔音、耐酸、抗压、质轻、安装便易等特点,公司严格执行国家相关标准,为客户提供高质量的产品和服务,产品已达到国际难燃B1极标准,防火性能优异。
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Bioflocculants are newly developed natural macromolecular organic substances produced by microorganisms, which have the ability to flocculate the suspensions and separate solid from the mixed.
中文摘要:生物絮凝剂是由微生物产生的一类生物大分子物质,具有一定的絮凝活性,能使液体中难沉降的固体悬浮颗粒凝聚,加速沉降以达到固液分离的目的。
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Vectorgraph can be converted to a bitmap, but in turn bitmap converted to vectorgraph technical comparison difficult to achieve, a lot of graphic design software that support the use of pixel figure converted to vectorgraph, a general description of the software for free vector function realization, so that we can on the basis of vectorgraph to do the editing, but this kind of conversion sometimes is time-consuming, and sometimes does not achieve the expected results, it is generally used for relatively simple bitmap, or you would like some special effects.
矢量图可以转换成位图,不过反过来把位图转换为矢量图技术上比较难实现,很多图形设计软件都支持将像素图转换成矢量图性,一般可用矢量软件的描摹功能实现,这样我们就可以在矢量图形的基础上再做编辑,但这样的转换有时候会很耗时,有时候并不能达到预想的效果,一般用于比较简单的位图,或者想要表现一些特殊的效果。
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The basic principles of the bio-oxidation of refractory gold-bearing concentrate in oxidation-box in static state are introduced.
介绍了难浸金精粉箱式静态生物氧化的基本方法流程,试验样品采用该方法处理 1 87d后,金的浸出率由 3 7.0 4%提高到 93 。0 1 %,基本达到槽式搅拌氧化 93 。68%的水平。
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Flossing will enable you to reach areas that are difficult to reach with a toothbrush, specifically between teeth and under the gumline.
牙线将使您能够达到的领域,很难达成具体的牙刷与牙齿的牙龈线下。
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During their visits to China, most foreigners only toured developed cities such as Shanghai, Beijing and Shenzhen, but not poverty-stricken and backward central and west regions. So they cannot imagine that there are still 50 million Chinese living in poverty. We have made a three-step strategy for development, the target for the mid-21st century is to reach the level of intermediately developed nations.
许多外国人到中国访问,只看到上海、北京、深圳等发达城市,较少到中国中西部比较贫困和落后的地区,他们很难想象中国还有5000万人尚未摆脱贫困,我们国家制定了分三步走的发展战略,计划到下个世纪中叶达到中等发达国家的水平。
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Curative effect were in therapeutic group than in control group. rapy of intractably therapeutic cervicitis not only need comprehensive treatment, but also need detect Mycoplasma in order to cure it aiming at cause of the disease.
研究组疗效明显优于对照组;对于难治性宫颈炎除要进行综合治疗外,尚要检测病原体,针对病因进行治疗,以达到治愈的目的。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。