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The effect of the substrate concentrations on 5-fluorouridine production was investigated in the presence of various concentrations of uridine and 5-fluorouracil under the optimal conditions mentioned below. The best conversion yield, 49% was obtained in optimal reaction conditions.

我们也探讨了在不同反应条件下5-氟尿苷的酶促合成，结果表明，产气肠杆菌EAM-Z〓游离细胞以UR和5-FU作为底物合成5-FUR的最佳条件为：最适pH为7.8，最适温度55℃，UR/5-FU为2.8，磷酸盐浓度为30mM，菌体用量为10％，反应时间为9h。

The results show that, the chloride concentrations and diffusion coefficients are both a one-humped function of elevations (can also be the time scale of seawater infiltration), they increase with the increase of elevation until they get to the peak value, and then decrease with the increase of elevation; an evident relationship is being between the surface chloride concentrations and the wave forces acted on the concrete surface, while there is no much difference among the diffusion coefficients; the diffusion coefficients get to bigger as the depth from the concrete surface increase in the influence of the capillary structures evolution and chloride concentration, but this tendency of change was alleviated with the increase of depth.

研究结果表明：氯离子侵蚀混凝土设施的竖向分布规律为氯离子浓度、扩散系数与标高之间同为单峰函数分布，先随高程变大而变大，达到峰值后，随高程变大而减小；氯离子侵蚀混凝土设施的环向分布规律为混凝土构件表面氯离子浓度、氯离子通量与波浪力之间有明显的对应关系，波浪力越大，则表面氯离子浓度和氯离子通量越高，而扩散系数在各方位角差别不明显；由于混凝土长期服役过程中内部毛细孔隙结构演化以及氯离子浓度的影响，氯离子扩散系数随混凝土深度变大而变大，但这种变化趋势随深度逐渐趋缓。

Through equations, we can calculate the concentrations of products from the concentrations of reactants.

P6 通过方程式，我们可以由反应物的浓度算出产物的浓度。

The nucleation and growth of thermodynamically unstable calcium oxalate trihydrate crystals were faster than those of thermodynamically stable calcium oxalate monohydrate crystals when the crystallization was in higher concentrations of calcium and oxalate (in the form of potassium oxalate). however, only com crystals formed when the concentrations of calcium and oxalate declined to 0.60 mmol/l.

结果 ca2+和c2o42-浓度较高时，热力学不稳定的三水草酸钙晶体成核及生长的速度比一水草酸钙晶体快，而随着ca2+和c2o42-浓度的降低，com晶体的成核和生长占优势，当浓度降低到0.6 mmol/l时，只出现com这一种晶型。

With the time of applying manure increasing, the concentrations of HAC-soluble form and oxidisable form were decreased, the concentrations of reducible form and residual form showed increased trend, the trend of compost manure treatment and swine manure treatment were same.

随着时间的延长，土壤醋酸提取态和可氧化态Cu含量有减少的趋势、可还原态和残渣态Cu含量有增加的趋势，堆肥猪粪和原始猪粪处理的土壤中各形态Cu随时间的变化趋势相似。

The mechanisms for the differences among rice cultivars in Cd uptake and translocation There were significant differences in root oxidating abilities and soil redox potential between two typical rice cultivars, Shan you 63 and Wu yun jing 7, that are greatly different in Cd uptake from soil. The root oxidating abilities and soil Eh were accordant with Cd uptake for the cultivars. The difference between the two cultivars in Fe concentrations of root iron plaque was also significant. The cultivar with higher Fe concentrations in root iron plaque absorbed less Cd from soil.

四、水稻不同品种对镉吸收及分配存在差异的生理机理对土壤中Cd吸收能力差异很大的水稻不同品种间，根系氧化力和土壤氧化还原电位有显著差异，品种的根系氧化力和土壤氧化还原电位与该品种对Cd的吸收能力间有很好的一致性；水稻不同品种间，根表铁氧化膜的含铁量有显著差异，根表铁氧化膜含铁量高的品种，对土壤中Cd的吸收能力低；盆栽水分腾发量高及根系伤流液Cd浓度高的品种，吸收积累Cd的能力强。

Pneumophila serogroup 5 antibody to develop two immuo-colloidal gold tests respectively. Main works listed below as:1、Preparation and identification of polysaccharide antigen of L. pneumophila Bacteria of LP1 ~ 7,9 and 10 were cultured on yeast agar buffer activated carbon for three to five days at 37℃, 5%CO2. Protein-free polysaccharide antigens were obtained after harvest in cells, extraction, deproteinization, dialysis and other steps. Their immunogenicities were verified by ultraviolet spectrophotometer full-wavelength scanning and Western blotting.2、Preparation and identification of rabbit anti-LP1 antibodies and rabbit anti-LP5 antibody Rabbit anti-LP1 and anti-LP5 antibodies were purified after rabbits were immuned with antigens isolated as described above. The purities of both antibodies were above 80% and the titer of blood serum 1:32 tested by double antibody sandwich assay.3、Development of colloidal gold immunochromatographic assay kit The size of colloidal gold particles in the kit was 25nm. The optimal concentrations for antibodies were 30μg/ml and the sensitized concentrations of NC membrane were 5 mg/ml.

主要研究工作从以下几个方面进行：1、LP1~7、9和10型多糖抗原的制备与鉴定将LP1~7、9和10型菌株分别接种在缓冲活性炭酵母琼脂培养基上，37℃、5%CO2的条件下培养，3~5天后洗下菌苔，经抽提、除蛋白、透析等步骤后得到基本无蛋白的LP多糖抗原，经紫外分光光度仪全波长扫描及Western blotting验证其抗原良好。2、兔抗LP1抗体和兔抗LP5抗体的制备与鉴定分别用LP1、LP5型多糖抗原免疫家兔，采用琼脂糖双向扩散试验检测，两种抗体血清效价均为1：32；饱和硫酸铵法提取抗体，SDS-PAGE检定其抗体纯度均达到80%以上。3、胶体金免疫层析检测试剂的初步研制采用柠檬酸三钠还原法制备约25nm大小的胶体金颗粒；分别制备兔抗LP1抗体、兔抗LP5抗体的金标探针，两种抗体的最适标记量均为30μg/ml；选择适当孔径的微孔滤膜为载体包被两种抗体，NC膜包被浓度均为5mg/ml。

Except inorganic nitrogen, activated phosphate, Hg, Pb concentrations which exceeded the Grade of clean seawater in Guanjinyang's big yellow-fin tuna cultural protection zones, other elements and sedimentary matter concentrations accorded with the standard of Grade of clean seawater.

福建省官井洋大黄鱼繁殖保护区水质中除无机氮、活性磷酸盐、汞、铅含量超过清洁海域水质标准外，其他要素和沉积物要素含量符合清洁海域标准。

Tween 80 at supraCMC resulted in reduced PAHs concentrations in wheat root and enhanced phenanthrene and pyrene concentrations in wheat stem and leaf.

在培养40天后，CMC以上Tween 80使小麦根中菲、芘和苯并芘含量下降，却促进了小麦茎叶中菲和芘的含量。

The seedling height and the leaf area increased after treatments.3 Rape seeds were cultured in the solution containing diosgenin of different concentrations. The different concentrations of diosgenin affected metabolism of rape seedlings, particularly at a concentration of 0.5mg/L. The treatments of 0.5mg/L diosgenin increased prominently the contents of soluble sugar, soluble protein and the activity of peroxidase, catalase, Ca2+- ATPase in rape cotyledons.4 Rape seedlings were sprayed with 0.5mg/L diosgenin solution at the two-leaf and one-bud stage.

油菜种子经不同浓度的薯蓣皂素浸种处理后，0.5 mg／L的薯蓣皂素明显影响油菜幼苗生理代谢，子叶中可溶性蛋白质和可溶性总糖含量提高，过氧化物酶和过氧化氢酶的活性，Ca~(2+)-ATP酶的活性上升。

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。