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    The anti-contamination ability of the dUTP/UDG system in fluorometric quantitative PCR
    dUTP/UDG反应体系在荧光定量PCR中抗污染能力评价
    Furthermore, its technological reproducibility and anti-contamination ability are better than those of GaAs(Cs, O2) photocathode.
    除此之外,它的工艺重复性和抗污染能力也比GaAs(Cs,O_2)光阴极的好。
    CT3-11 has the thermal stability and resistance to contamination.
    试验表明,CT3-11具有抗温、抗污染能力
    The property, lubricity, compatibility with drilling fluid, anti-pollution ability of HRH-101 are evaluated by experiment in lab and selected the amount of optimum addition.
    室内实验评价了HRH-101的理化性能、润滑性、与钻井液的配伍性及抗污染能力,进行了加量优选。
    In field drilling, H2S and gypsum invasion were encountered, and contamined by such ions as HCO3- and CO32-, however, the pH value maintained at 12-13 after treatment and good drilling fluid performances were achieved.
    在现场应用过程中,该钻井液遇到了H2S气体侵以及严重的石膏侵和HCO3-、CO32-污染问题,经处理后,保证了钻井液pH值在12-13之间,钻井液整体性能良好,证明该钻井液抗污染能力强。
    Results showed that PVDF membrane had stronger resistant pollution ability to orange juice filtrated by 150 sieve pore and centrifugalization than that by 80 sieve pore filtering.
    结果表明:PVDF膜对150目筛滤离心过滤后的果汁表现出较强的抗污染能力;
    Problems of high viscosity with low shearing force, high viscosity with high shearing force and strong mud cake friction drag exist in wells of Quele-1 and Quele-4 where a high density (2. 15-2. 30 g/cm3) unsaturated salt water drilling fluid with high thermostability, pollution prevention and strong inhibition.
    采用抗高温抗污染能力强、抑制性强的高密度(密度为2.15~2.30g/cm~3)欠饱和盐水钻井液钻进,在却勒1井和却勒4井的应用中分别出现了高粘度和低切力、高粘度和高切力、泥饼摩阻大的问题,钻井液维护处理难度大。
    Results indicate that the potassium silicate mud system has good properties on rheology, filtration and inhibition, and is better than the potassium chloride mud system at( the same dosage. Meanwhile, it has good thermal stability (120℃)) and anti-contaminative ability(5% NaCl, 0.7% CaSO_4).
    综合实验结果表明 ,该配方配制的硅酸钾钻井液体系具有优良的流变性、失水造壁性和抑制性 ,优于相同加量下的氯化钾钻井液体系。 同时 ,该体系还具有良好的热稳定性和抗污染能力 (5 %NaCl、0 .7%CaSO4) ,抗温能力强 (达 1 2 0℃ )。
    So, the ability of antipollution becomes the important performance of electrohydraulic servo valve.
    因此,抗污染能力成为电液伺服阀的重要指标.
    This paper introduces the designing of a moving coil electrohydraulic servo valve which improve the ability of antipollution.
    通过对一种动圈电液伺服阀的液压桥路和具体参数的设计,提高了这种伺服阀抗污染的能力.
    PVDF microfiltration membrane had stronger anti -pollution ability to pineapple juice than PS ultrafiltration membrane, the recovery rate of permeation flux of water reached 97.8% after cleaning.
    PVDF微滤膜的抗污染能力比PS超滤膜强,清洗后膜透水速率的恢复率达到了97.8%;
    Experimental results show that the new type electrohydraulic servo valve has better and unparalleled dynamic and static performance of resisting pollution.
    实验结果表明该阀的主要动、静特性指标均已超过国内外相同规格不同驱动控制类型的各种电液伺服阀,尤其是具有现有阀无法比拟的抗污染能力
    The experimental results show that an ultrathin smooth monolayer,with a thickness of(1.20±0.01)nm,Ra of less than 0.2 nm and a water contact angle of 110.5°±0.1°,can be prepared on the magnetic head surface by controlling the reaction time and that this ultra-thin film considerably improves the hydrophobicity of the magnetic head surface.
    实验结果表明,控制反应时间可以在磁头表面制备超薄平整的FTE自组装膜,膜厚为(1.20±0.01)nm,表面粗糙度小于0.2 nm。 该层超薄膜使磁头对水的接触角增加到110.5°±0.1,°令磁头的疏水性能得到很大提高,进而较大幅度地提高了磁头表面的抗污染能力
    Experiment esult shows the capability resistance to pollution of the designed system is improved obviously,the controller can evidently shorten the self-study time of center tyre inflation/deflation system,the control precision and dependability of the system is enhanced.
    实验表明所设计的系统抗污染能力明显增强,其控制器能显著缩短中央充放气系统自学习时间,系统的控制精度和系统的可靠性得到提高。
    An Electro-hydraulic Unloader Valve with Super Contamination Resistibility
    一种具有超强抗污染能力的电液卸荷阀
    The Tree of Heaven——One of the Tree Species with Strong Anti-pollution Capacity
    臭椿——抗污染能力强的树种
    Direct-drive servo valve has come to be an important trend in fluid power transmission and control, in that it has advantages like compact structure, quick response, strong immunity to pollution, strong reliability, no leakage in pilot stage and no influence of supply pressure to performance.
    直动式电液伺服阀因其具有结构简单、响应快、抗污染能力强、可靠性高、无先导级泄漏、特性不受供油压力影响等性能优点,已经成为流体传动与控制领域的一个重要发展方向和竞争焦点。
    This paper supplyed a new way through changing pump抯 rotate speed to changeits output fluence, which could solve the defects in hydraulic pressure servo controlsystem, such as low efficiency, short life, poor ablity in resisting pollsution and lowefficiency in driving system.
    针对传统电液伺服控制系统效率不高、元件寿命短、抗污染能力差、驱动系统效率低等缺陷,本文提出了利用先进的交流变频调速技术改变油泵转速的容积调速新方法,较好地解决了液压伺服系统存在的上述问题。
    It was indicated that the blend system of PVDF/CA is compatible inpart, the hydrophilicity of PVDF was increased by blending with CA andthus the preformance of the membrane were improved.
    结果表明,聚偏氟乙烯(PVDF)和醋酸纤维素(CA)属于不完全相容体系,在PVDF中混入CA可以增加膜表面的亲水性,提高其抗污染能力
    Lastly, the comparison of those PVDF hollow fibers membrane before and after modification has been studied by separately applied them to practically oil water (with confected concentration of 60mg/L) separation test, the decrease of water flux was measured, according to the results, grafted hollow fiber membrane showed better antipollution capability, it indicated that this method is practicable and effective.
    最后,将改性前后的中空纤维膜分别应用于油水(自配浓度为60mg/L)分离试验,测定膜通量的衰减,数据表明改性后的PVDF中空纤维膜表面的抗污染能力有很大程度的提高,这说明用表面化学接枝改性的方法可以改善疏水的PVDF膜表面,该方法是切实可行的。
 

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