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At constant viscosity, by increasing the liquid flow rate, the liquid film's velocity is increased; at the same experiment condition, the frequency of the liquid film is same at the same radial direction; the air current has minimum effect on liquid film bottom flow velocity, while it has an obvious effect on liquid film surface flow velocity. The longer the distance between liquid film and the inlet, the lower the pulsatory frequency and longer the wavelength.

在粘度基本不变的情况下,随着液体质量流率的增加,液膜流动速度随之增加;在同一个实验条件下,沿圆管径向各质点的频率基本保持不变;气流场速度对液膜底层流动速度影响很小,对于液膜表面流动速度有着较大的影响;沿液膜流动方向,液膜的脉动速度逐渐增加,脉动频率降低,脉动波长变长,与报道的通过快速摄像得到的液膜发展趋势一致,证实用PDA研究液膜流动是可行的。

Expression of change of the chemical composition with ferruginous surface of the mild steel in doing wet loop to corrupt a process quickly, structure is in rustily and earlier α- FeOOH content is inferior, rubiginous layer is loose, rustily speed is shown increase along with time of dry wet circulation and rise trend; later period follows α- the addition of FeOOH content and rubiginous layer become more compact, corrode change to drop to increase along with time of dry wet circulation.

在干湿循环加速腐蚀进程中低碳钢表面铁锈的化学组成、结构变化表现为在锈蚀初期α-FeOOH含量较低,锈层疏松,锈蚀速度呈随干湿循环次数增加而上升趋向;后期随α-FeOOH含量的增加和锈层变得更加致密,腐蚀转变为随干湿循环次数增加而下降。

The sound producing system of Sciaenidae is consisted mainly of extrinsic sonic muscle and swimbladder. Because female red drum do not have the sonic muscle, the sonic muscle of young red drum appeared when they were three months old and they were male. Young male red drum started to produce audiable sound at seven months old. The weights of sonic muscles and swimbladders increased with body weights.

石首鱼的发声系统以外接发声肌肉及泳鳔为主,由於雌鱼并无发声肌肉,因此红鼓鱼幼鱼在三个月左右出现发声肌肉者为雄鱼,发育的过程中,发声肌肉、泳鳔的重量随年龄增加增加,然而雄鱼泳鳔的重量增加情形大於雌鱼。

The lowest surface tension of N_xB solution was better at 25℃, and lowest surface tension would down with carbon . cmc( critical micelle concentration) and γ_ in N_(12)B are 4.1 × 10~(-4)mol/L, 24.5 mN.m~(-1),what was smaller than LAS . The cmc of N_(12)B- NaCl are down with NaCl up.The surface tension and cmc of N_(12)B and N_(16)B are higher than that of N_(12)OB and N_(16)OB because of hydrophilic group ,but that of N_(12)B is lower than that of N_(16)B because of hydrophobic group .5. The borate structure and semipolar bond were studied in different pH by infrared spectrum .It indicated that N_xB and N_xOB have not semipolar bond at pH

4、25℃,N_xB系列都有较低的表面张力,并随碳原子数的增加而最低表面张力下降。N_(12)B比同碳原子数的十二烷基苯磺酸钠的最低表面张力34.5mN/m低,且临界胶束浓度为4.1×10~(-5)mol/L,也比LAS低,且随着NaCl浓度的增加而略有下降,比较N_(12)B和N_(16)B,由于C_(16)疏水基的异构体使N_(12)B的临界胶束浓度和临界胶束浓度时的表面张力γ_(cmc都低,由于增加了亲水基团使得N_(12)OB和N_(16)OB的表面张力和临界胶束浓度都要高于N_(12)B和N_(16)B。

In addition, other operation condition, such as soapless seeded preparation schedule or without seed, could meet the requirement of the larger particle sizes, broader particle sizes distribution and lower viscosities. Besides the increment of addition rate induces the peel strength and tack decreased and the holding power increased for the PSA tapes that are made from the multicopolymer latexes, the above operation conditions which lead the particle sizes to enlarge would increase the peel strength and tack, and decrease the holding power.

用多元共聚胶乳制备的压敏胶带,除单体滴加速率增加使剥离强度与初粘力下降、持粘力增加外,通常,使胶乳粒径变大的操作条件将使压敏胶剥离强度与初粘力增加,持粘力降低。

The results showed that NaCl stress decreased the seedlings fresh mass and dry mass significantly. Under NaCl stress, the relative contents of Na(superscript +) and Cl(superscript -) in cells increased significantly, but the increment somewhat differed with different tissues. In root and stem, epidermal cells had the greatest increment, followed by cortex cells, and stelar cells; while in leaf, epidermal cells had the greatest increment, followed by cortex cells, spongy tissue cells, and palisade tissue cells.

结果表明:NaCl能显著降低长春花幼苗的鲜质量和干质量;对根、茎和叶片横切面X射线微区分析表明,NaCl胁迫导致长春花体内各组织细胞中Na和Cl相对含量显著增加,但在各器官、组织中分布稍有不同:与对照相比,根和茎中都是表皮细胞中增加幅度最大,中柱细胞次之,皮层细胞最低;在叶片中亦是表皮细胞增加幅度最大,依次是皮层细胞、海绵组织细胞及栅栏组织细胞。

Being as a NO donator,L-Arg siguitlcanfly enhanced the ability of TNF-α which increasing permeability of strial capillary cndothelial cells;permeation rate to Evans blue beightened significantly(P<0.01),which obviously rose up when the concentration of Evans blue added.L-NMMA,NO inhibitor,was able to weaken the ability of TNF-α which increasing permeability of strial capillary endothelial cells:permeation rate to Evans blue decreased siguificantly (P<0.01),which obviously fell down when the concentration of L-NMMA added.

一氧化氮(nitric oxide,NO)供体L-Arg能增加TNF-α作用下耳蜗血管纹微血管内皮细胞的通透性,使伊文思蓝的通透率升高,差异具有统计学意义(P值均<0.01),且随着L-Arg浓度的增加内皮细胞对伊文思蓝的通透率也明显增加

The hardness of the mixed gels increased with salts concentration, while the protein solubility, water-holding capacity and sulphydryl group content had a decreased trend. The microstructure of mixed gels showed a porous network and particulates structures by addition of NaCl and CaCl2 respectively.

结果表明:随着pH的增加,凝胶的硬度和溶解度减小,添加淀粉进一步降低了混合凝胶的溶解度;盐浓度的增加使混合凝胶硬度增加,而蛋白溶解度、持水力和巯基含量则呈下降趋势;添加NaCl 和CaCl2的混合凝胶分别呈现出多孔网状和颗粒状结构。

After land use structure was predicted by use of markov, woodland area increased swingingly yearly, others decreased yearly, in particular croplandand and plantation decreased markly, and system stability decreased.,so the land use structure should be coordinated.

利用马尔柯夫模型对该流域土地利用结构进行预测,发现林地与园地所占面积比例逐年增加,林地增加幅度较大;其余各类土地均呈递减趋势,特别是耕地减少幅度较大,系统稳定性逐渐降低,应调整土地利用结构,增加系统稳定性。

Though the comparison between the experimental group and the control group, it was proved that planting Tamarix chinensis on the saline soil not only could increase the number of the soil micro-organisms, but also could increase the volume of air, the content of organic matter, and lower the pH value, increase in ornamental.

通过将实验组与对照组的比较,分析得出在滨海盐渍土上栽植柽柳不但可增加土壤中微生物的含量,而且可增加土壤中的空气和有机质的含量,提高土壤颗粒的贮水能力,还可降低土壤的pH值,增加观赏性。

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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.

老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。