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When the plant N level was below 2%, the leaf starch accumulation kept stable, but the sugar content in leaf and starch content in lower layer leaf increased. When the plant N level was between 2. 0% and 2. 8%, the activity of SPS and leaf soluble sugar content were the greatest, which was favorable to the transportation of the accumulated matter from the leaf to the grain.

随植株氮水平提高，叶绿素总含量提高，但叶绿素b的提高速度快于叶绿素a；当植株叶片含氮率在2％以下时，随植株氮水平提高，水稻叶片淀粉积累不仅没有减少，相反叶片中的糖含量和下层叶的淀粉含量还有显著提高；当植株叶片含氮率在2.0％到2.8％的适宜水平时，叶片SPS酶活力和可溶性糖含量最高，有利于叶片中积累物质向籽粒转运。

The result indicates that with organic fertilizer and inorganic nitrogen fertilizer can obviously increase the leaf dimension coefficient, enhance the content of chlorophyll and soluble protein, improve the SOD activity of flag leaf, depress the content of MDA, postpone the speed of decrepitude of flag leaf,; The status with high content of chlorophyll and leaf dimension coefficient lasts longer with organic fertilizer than with inorganic nitrogen fertilizer and the flag leaf have longer functioning time; the combination of inorganic nitrogen fertilizer and organic fertilizer can substantially postpone the speed of decrepitude of winter wheat.

在国内持续时间最长的肥料长期定位（28年）试验条件下，研究了肥料持续施用下冬小麦花后叶面积系数等生理指标的变化，结果表明施用有机肥、氮肥，可明显增大小麦的叶面积系数，增加叶绿素含量和可溶性蛋白含量，提高旗叶的SOD活性，降低丙二醛的含量，延缓旗叶的衰老；施用有机肥较施用氮肥，叶绿素含量及叶面积系数持续高值时间长，旗叶有更长的功能期；长期氮肥与有机肥配施能显著延缓小麦衰老。

Every road property of slag cement concrete was varied in slag content, as its content is 30%, the mechnical property and durability of concrete were higher than that of other slag content.

矿渣水泥砼的各项路用性能随矿渣掺量的变化不同，当矿渣掺量为30％时。砼的力学性能和耐磨性能均高于其他掺量的砼。

The results showed that, when treated with ground parts degradation products, the height and leaf area of taro plants were increased; the contents of available nitrogen, available potassium, available phosphorus and soil pH value were improved; the yield of taro increased by 15.4%~23.2%, the content of Vitamin C increased by 3.6%, starch content and crude fat content increased by 8.4% and 20.0%, respetively.

结果表明：与对照相比，添加芋艿残体处理芋艿株高和叶面积都有所增加；土壤碱解氮、速效钾、有效磷含量和土壤pH均有不同程度提高；添加芋艿残体可以提高芋艿产量15.4%~23.2%，也可提高芋艿品质，其中维生素C含量提高3.6%，淀粉含量提高8.4%，粗脂肪含量提高20.0%。

The study results show that:①The distribution of Cd in shallow surface soils is characterized as: The content of Cd in lacustrine deposit, alluvial lacustrine and alluvial-diluvial low-lying plain is 1.4 to 1.8 times as high as in alluvial-diluvial high valley flat and alluvial-diluvial high bank physiognomy areas.②The content variation of Cd in horizontal distribution was controlled by clay primarily and OrgC secondly. The variation of OrgC was major factor that affected the content variation of Cd in vertical distribution.

结果表明：①研究区浅层土壤中w的分布特征为，湖积低平原区、冲－湖积低平原区及冲洪积低洼平原区地貌成因类型土壤中的含量明显高于冲洪积高漫滩平原区、冲洪积高亢平原区地貌成因类型土壤，其质量分数差异达1.4~1.8倍；②研究区不同地貌成因类型土壤中，w的横向分布特征主要受黏粒含量分布的控制，其次是wC(下标 org；垂向分布特征的主要控制因素是wC

The results showed that the city water detection of organic pollutants in water content did not exceed state drinking water standards,but type UPVC water pipes head slightly higher than the organic content-type castiron pipes,top water and organic content is ...

结果表明，自来水厂出厂水中检出有机污染物含量均未超过国家饮用水水质标准，但UPVC型水管中水头水有机物含量略微高于铸铁型水管，中断水中有机物含量基本相同。

And it is concluded that the No.4-2coal seam is a mid-reserve and low-permeable seam, with surrounding rocks having low enclosed system and high permeability. And the coal seam's gas content is low, while its quantity in the roof-sandstone which is the main source of coalface's gas emission is high . The quantitative index used to analyze gas content and gas emission amount are pointed out systematically. And gray association analysis method is adopted to search the main factors affecting coal-bed content and gas emission amount.

系统提出了分析影响煤层瓦斯含量与采面瓦斯涌出量大小的量化因素指标，并将灰色关联分析原理引入煤层瓦斯含量与瓦斯涌出量主控因素的研究中，筛选出了煤层顶板含油指数，顶板砂泥岩比、4-2号煤层顶板以上煤系厚度3个因素指标为影响4-2号煤层瓦斯含量的主控地质因素；煤层埋藏深度，煤层瓦斯含量，煤层顶板含油气砂岩厚度，煤层顶板含油强度及工作面回采进度5个因素为影响综采面瓦斯涌出量的主控因素。

Both the TPP value and the second, degree bum time increase with the moisture content. There ale positive correlation relationship between moisture content percent, the second-degree burn time and TPP value. Simple lineal regression equations are developed between TPP value; the second-degree bum time and moisture content percent.

二级烧伤时间和TPP值均随面料含水率的增大而增大，含水率与二级烧伤时间和TPP值之间存在显著的线性正相关关系，并在TPP值、二级烧伤时间与含水率之间建立了一元线性回归方程。

To improve thetemperature stress and increase frost resistance, the roll conrete adopts RCC mix proportion mading up ofmedium-content cementing material, low-content cement, high-content flyash and methods to defer loss of VCso as to meet the requirement of the RCD construction technique. It has the advantages of both th...

为了改善坝体的温度应力，提高其抗冻性，碾压混凝土采用了中胶凝材料总量、低水泥用量、高掺粉煤灰的RCC配合比，并采取措施减缓VC值的增长速度，以满足RCD筑坝技术的要求，使其既保持了RCD筑坝技术的长处，又具有RCC高掺粉煤灰的优点，从而发展了RCD筑坝技术。

Plants were hydroponically grown in solutions containing 3 mM Ca(NO3)2 or 3 mM NH4NO3 as nitrogen source. Mature plants were harvested eight times in one day at a 3 hr. interval from 8:00PM Aug. 12 to 5:00PM Aug. 13. Diurnal variations of the shoot nitrate content were observed in either Ca(NO3)2 or NH4NO3 treatment. Shoot nitrate content of Ca(NO3)2 treated plants were higher than those treated with NH4NO3 at every harvest. The average shoot nitrate content of lettuce with Ca(NO3)2 was 0.68% of the dry weight, and it was 0.29% for the NH4NO3 treated lettuce. The fresh weight of the NH4NO3 treated lettuce were 1.43 or 1.2 fold heavier than those with Ca(NO3)2 treatment for shoot or root respectively.

R36品种以3mM硝酸钙(6mM N)或3mM硝酸铵(6mM N)处理，於8月12日下午8点开始采收，每隔3小时采收一次，采收至8月13日下午5点。3mM硝酸钙与3硝酸铵两种养液处理的地上部硝态氮含量皆有日变化，而且在8个采收时间，3mM硝酸钙养液处理的地上部硝态含量皆高於3mM硝酸铵处理。8个采收时间的硝态氮含量平均，3mM硝酸钙养液为乾物含量的0.68%，而3mM硝酸铵处理为0.29%。3mM硝酸铵养液处理的地上部与根部鲜重分别为3mM硝酸钙处理的1.43倍及1.2倍。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。