查询词典 refractory

The nitrogen in fossil fuels is more refractory than sulfur, and microbial approaches for petroleum denitrogenation could be beneficial as the classical hydroprocessing methods are costly and unefficient.

化石燃料中所含的有机氮较有机硫更难以去除，常规的化学脱有机氮技术高压加氢法处理燃油能耗高，处理效果不理想等方面的缺陷使人们思考生物脱氮的可能性。

Furthermore, preliminary work also performed to examine whether PI3K/AKT signal transduction pathway was activated in the process of refractory leukemia development. Materials and methods An immortalized human bone marrow stromal cell line, HS-5, was introduced to establish a bi-phase culture system for the cultivation of B-lineage precursor leukemia cells. ELISA and RT-PCR were used to investigate the expression of VEGF and its receptors in the leukemia cell lines and primary childhood leukemia cells in different treated groups. Flow cytometory method and immunofluorescent staining were employed to examine the apoptosis signals both in the VP16 treated and untreated leukemia cells. Western blot was utilized to explore the PI3K/AKT activated status in the drug induced or uninduced leukemia cells and lymphocytes from healthy donors.

材料和方法使用来源于人类骨髓基质细胞的细胞株HS-5作为滋养层细胞进行急性淋巴细胞性白血病细胞的体外培养，通过细胞生物学和免疫学方法评估培养体系并鉴定出难治性白血病细胞克隆；以ELISA和RT-PCR方法检测急性白血病细胞株和患儿白血病细胞VEGF及其受体的表达，了解不同治疗阶段VEGF及其受体的表达状况，并结合临床指标进行分析，明确VEGF及其受体在白血病发生过程中的作用；流式细胞仪和免疫荧光染色法对正常健康儿童、初发白血病患儿、复发白血病患儿及缓解后患儿进行凋亡因子检测和分析，初步阐明难治性白血病抗凋亡形成的原因；蛋白印记分析检测PI3K/AKT信号传导通路在健康儿童、初发白血病和复发白血病患儿的表达，初步了解难治性白血病形成的分子生物学机制。

Objective To explore the effect of hemodialysis combined with hemoperfusion in treatment of uremic patients with refractory cardiac failure.

目的探讨血液透析联合血液灌流治疗尿毒症性顽固性心力衰竭的疗效。

64 uremic patients on hemodialysis and with refractory heart failure were randomly divided into treatment group and control group （each group 32 cases）.

方法选择血液透析并发尿毒症顽固性心力衰竭的患者64例，随机将其分为治疗组和对照组，每组32例。

A vag in al in flammation caused by a trichomonadand result in g in a refractory discharge and itch in g.

毛滴虫病由毛滴虫引起的阴道炎，其结果是不起反应的排出和搔痒

Panzhihua-Xichang area in Sichuan is abundant in vanadic titianomagnetite deposit. Because vanadium and titanium are transition metals and the difference between their atomic numbers is only 1, titanium carbide and vanadium carbide are refractory, high hardness and thermodynamically stable metal carbides.

而采用粉末冶金原位合成法不但可以解决铸造法因增强相体积分数增加及增强相与铁基体的密度差异而导致的铸造缺陷以及SHS的致密化问题，而且克服了粉末冶金法存在的增强体与基体之间结合不良的问题。

Experts pointed out that recurrent cough can lead to infant malnutrition, reduced resistance to the body, often refractory persistent respiratory tract infection, these factors can also enable the intake of vitamin A reduced the formation of a vicious circle.

专家们指出，经常性的呛咳可以引起小宝宝营养不良，机体抵抗力减弱，常使呼吸道感染迁延难愈，这些因素又可使维生素A的摄人减少，形成恶性循环。

Experts pointed out that recurrent cough can lead to infant malnutrition, reduced resistance to the body, often refractory persistent respiratory tract infection, these factors can also enable the intake of vitamin A reduced the formation of a vicious circle.

专家们指出，经常性的呛咳可以引起婴儿营养不良，机体抵抗力减弱，常使呼吸道感染迁延难愈，这些因素又可使维生素A的摄人减少，形成恶性循环。

21 cases of chronic refractory skin ulcer of the elderly were treated with MEBO using exposed or bandaging method.

摘 要］目的：由多种原因引起的老年人慢性顽固性皮肤溃疡，病程长，全身情况差，临床治疗颇为棘手。

According to the characteristics of the project, construction and technology of the unit determined Silo body chimney-free sliding mode synchronous hydraulic derrick new technology (that is lined with refractory brick corbels) construction, in order to ensure safety and quality and progress.

根据该工程特点，工期以及本单位技术情况确定烟囱筒身采用无井架液压滑模同步新工艺施工，以确保安全质量和进度。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。