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It was also found that both the content of heavy metal and its increment speed in tree rings in major urban road system were much higher than these in campus and the content of some heavy metals in tree ring in campus had been not increased with the time-lasting.

对比还发现，校园组树木年轮重金属元素含量明显低于行道树组，且上升速度大大低于行道树组，甚至校园组某些元素含量随时间无明显的上升趋势。

Allowable current density is firstly confirmed by analyzing the variation of current efficiency with current density. Effects of content of ammonia ions, pH value and the content of sodium formate upon the throwing power, covering power and ability of anti-impurities, were measured.

首先通过分析电流效率随电流密度的变化情况确定了镀液的许用电流密度，然后测定了氨的含量、镀液pH值、甲酸钠的含量等因素对分散能力、深镀能力、抗杂性能等镀液性能的影响。

Figure 2 shows the jigging concentrate relations between content and ore feeding volume, when the diaphragm jig and the sawtooth pulsation jig are provided with different ore volume. Figure 3 shows the jigging concentrate relations between the sulphur recovery rate and ore feeding volume. As the test result shows, when the tailing content reaches approximately 7%, the diaphragm jig has 1.00 t / h · m2 feeding volume, which is also the maximum sorting efficiency in the test. As such, the sawtooth pulsation jig could choose 1.2 t / h · m2 feeding volume. As the test contrast of two groups shows, the sawtooth pulsation jigging concentrate contains higher-grade sulphur than the diaphragm jigging concentrate does.

图2为隔膜跳汰机及锯齿波跳汰机在不同给矿量的情况下，跳汰精矿品位与给矿量的关系，图3为跳汰机精矿硫回收率与给矿量的关系，试验结果表明，在尾矿品位接近7%，隔膜跳汰机给矿量为1.00 t/h·m2指标是隔膜跳汰机给矿量试验中选别效率最高的点，同理选择锯齿波给矿量为1.2 t/h·m2，将两组试验数据比较可以看出，锯齿波跳汰精矿含硫品位高于隔膜跳汰精矿含硫品位。

The results showed that the change of storage region had great effects on the property and sugar content of sweet sorghum. The change of sweet sorghum stalk with total sugar content about 58%(g/g dry sweet sorghum stalk) stored in the cold and dry Sonid Right Banner was as follows: rapid water loss and rapid dryness and sugar loss as 13%. When stored in Beijing, its change was as follows: sugar loss reached up to 25% and serious mildew occurred.

结果表明，区域选择的差异，对甜高粱秸秆的贮藏产生较大的影响，总糖约58%的甜高粱秸秆在低温、干燥的苏尼特右旗全年贮藏的物性变化为：失水、干燥速度快，总糖损失为13%；北京贮藏的甜高粱秸秆总糖损失达25%，霉变现象严重。

The results showed that compared with flat planting,the leaf area, flag leaf function duration, chlorophyll content and the activities of protection enzymes of SOD, POD and CAT in leaves in straw mulching were significantly higher, its malondialdehyde content and over oxidation degree of membrane lipids was lower, the speed of flag leaf aging was slower and the metabolizability was vigorous, which are beneficial to the grain-filling and accumulation of photosynthesis products.

结果表明，覆草栽培叶面积、旗叶功能期、叶绿素含量、叶片保护酶活性(SOD、POD、CAT)显著高于常规栽培，膜脂过氧化程度较低，叶片衰老速度缓慢，代谢强度旺盛，有利于籽粒灌浆和光合产物的积累。

Methods To test the content of environmental mercury in the treated region of Songhua river and the control region; to test the content of mercury in hair of children 10～13 years old and to determine the growth index such as height, body weight, sitting height, chest circumference, back strength, grip strength; to measure the IQ with CRT-RC.

对松花江汞污染综合治理地区与无污染的对照地区环境中的汞含量进行测定；选择2个地区10~13岁儿童测量其发汞含量并进行儿童生长发育指标身高、体重、坐高、胸围、背肌力、握力的测定；用联合型－瑞文测验的方法进行智商测定。

Production plant is built by Liwo machining centers, CNC horizontal boring and milling machines, CNC milling machine portfolio composed of "soft-shell parts production line": production block, cylinder head, gearbox, and other high technology content Shell exports of parts and vehicles and Liwo Liwo CNC machining centers, and other components of the "revolving line of processing": processing the internal combustion engine piston, cylinder differential top shell, shell reducer such as automobiles, engineering machinery, Agricultural machinery industry with high technical content in the rotating parts, as well as between the rotating shell parts and exports between the parts production.

现生产工厂已建由立卧加工中心、卧式数控镗铣床、数控组合铣床组成的&壳体类零件准柔性生产线&：生产缸体、缸盖、变速箱等各种技术含量高的壳体类出口零件；以及数控立卧车和立卧加工中心等组成的&回转体加工线&：加工内燃机活塞、缸头等差速器壳体、减速器壳体等汽车、工程机械、农机行业中技术含量高的回转体零件以及介于回转体和壳体类零件之间的出口零件生产。

Compared with progenies of inter-tree-pollinated E.urophyllaagain,progenies of self-pollinated E.urophylla showsignificant inbreeding depression in height,DBH and volume;theyshow no significant inbreeding depression in water content ofgreen wood,basic density and bark thickness;their content of1%NaOH extractives increases significantly,and their maturefiber length decreases significantly.

与尾叶桉株间杂交子代比较，尾叶桉自交子代的树高、胸径和材积具有显著至极显著的近交退化，生材含水率、木材基本密度和树皮厚度无近交退化现象，1％NaOH抽提物含量呈略显著性提高，成熟材纤维长度呈显著性减短；尾叶桉自由授粉子代的近交退化规律大致与自交子代相同，但其退化程度远不及自交子代。

The results show that with the content of the synthetic compound increasing, the surface resistivity of PVC materials was decreased. When the content of the synthetic compound reached 4.5%, the surface resistivity of PVC materials was reduced below 3.0×108 ?.

结果表明：随合成长链季铵盐的添加量增大，PVC材料的表面电阻率降低，较小的添加量(4.5%)即可使材料的表面电阻率降低至3.0×108 Ω以下，达到了煤矿行业对高分子材料抗静电性能的要求。

Chapters IV and V encompass the content of creation, expression forms, and work appreciation, where the chapter focuses on applying the innovative "Leaf grain glazing", utilizing the research techniques and firing experiment findings, in the format and content of the creation, with the study categories in the work expression encompassing the expression of leaf pattern glazing, integration of leaf pattern glazing and painting, pottery installations, and the adaptation of pottery installation and multimedia medium.

第四、五章是创作内容、表现形式与作品赏析。本章根据研究技法与烧成实验结果，将「叶纹釉面」技法上的创新，应用在创作形式与内容上之研究。作品在表现形式上，研究的项目包括木叶纹釉色表现，木叶纹釉与绘画的结合，陶装置˙装置陶以及媒材多元的应用。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。