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This project was conducted starting with the three interrelated subjects the structural characteristics of desertification landscapes in different bioclimatic zones, desertification driving factors and their function mechanism, and the dynamic model of landscape space for the occurrence and development of desertification in representative desertification regions and on the basis of in-depth studies of the relations between landscape structural characteristics and processes of desertification and their stability; the driving force of different time-space scales of desertification and their proportion, manifestation form, and action mechanism in the desertification processes; and the establishment of threshold conditions for the surface wind erosion and has achieved important progress in the definition of desertification conception
本课题从三个相互联系的专题(即不同生物气候区荒漠化景观的结构特征、荒漠化驱动因素及其作用机理、典型荒漠化地区荒漠化发生与发展的景观空间动力学模型)入手,在深入研究荒漠化景观结构特征与过程的关系及其稳定性,不同时空尺度的荒漠化过程驱动力及其在荒漠化过程中所占比重、表现形式及作用机制,地表风蚀临界条件的确定等内容的基础上,虽未建立荒漠化景观空间动力学模型,但在沙漠化概念,末次间冰期以来沙漠化过程时间序列和特征冷暖时期沙漠、沙地空间分布格局,现代沙漠化过程中自然因素和人文因素的作用、贡献率、沙漠化土地对气候的反馈作用以及风蚀临界值,沙粒跃移轨迹参数和能量分布,我国沙漠化防治思路和对策,沙尘暴区划和沙尘暴指数等方面取得了重要进展。
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Among them, large scale I -1 insidious ore body has been found in beresitized cataclastic rock belts, the proportion of gold resources is 39.39%, and great break through in ore probing has been gained as well.
其中,在主裂面下盘的黄铁绢英岩化碎裂岩带内发现了规模较大盲矿体I-1号矿体,其资源储量占总量的39.39%,取得了深部找矿的重大突破。
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The investigation on the concentration of four haloacetic acid s during conventional water treatment process in waterworks and in drinking waters in North China showed that there were only dichloroacetic acids and trichloroacetic acids in waters,and the proportion of TCAA was from 52% to 90%.
对北方某自来水厂常规水处理过程及饮用水体中的4种卤乙酸质量浓度进行了调查,结果表明水体中只存在二氯乙酸和三氯乙酸,其中三氯乙酸所占比例较大,为52%~90%;常规水处理工艺对二氯乙酸有较为明显的去除效果,去除率在15%以上,而对三氯乙酸没有明显的去除效果,但总体而言其对卤乙酸有10%左右的去除率;预氯化对卤乙酸的产生起主导性作用,该处产生的卤乙酸占整个氯化过程产生的卤乙酸总量的60%以上,因此常规工艺有必要从预氯化工艺着手加以改进,来更好的控制卤乙酸的产生量。
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Results: Mast cells in uterus were mainly distributed in the myometrium, only a few in the endometrium. After ovum implantation ,the mast cells were comparatively less at the place of implantation. The number of mast cells of early and late pregnancy(1~5 dyas, 15~19 dyas) was apparently higher than that during middle pregnancy(P<0. 05). Stained by alcian blue-safranin, both red and reddish blue mast cells decreased gradually in number during pregnancy, but the proportion of blue mast cells was increased. Critical electrolyte concentration of mast cells decreased as time went on.
结果:(1)肥大细胞主要分布于子宫肌层,子宫内膜较少,且胚泡植人部位的肥大细胞明显少于非植入部位;(2)妊娠早期(孕1~5d)和妊娠后期(孕15~19d)肥大细胞数显著多于妊娠中期(P<0.05);(3)Alcian蓝藏红组化染色后,可见妊娠过程中红色和红蓝混合色肥大细胞逐渐减少;蓝色肥大细胞所占比例逐渐增大,孕9~19d肥大细胞几乎全部为蓝色;(4)肥大细胞临界电解质浓度值随妊娠时间的推移而变小。
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Elissa Cameron at the University of Pretoria in South Africa and her colleagues wanted to study how changes in diet might influence sex ratios – the proportion of males to females in a population.
南非比勒陀利亚大学的艾莉莎卡梅隆是这项研究的负责人,她和同事就是想确认,饮食变化对胎儿性别到底有多大的影响。
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In the diet, the proportion of Platycephalidae, an important prey of juvenile A. sinensis in the past, was very low, only accounting for 1.81% of the total food by mass, while that of Gobiidae and Isopoda, which had not been recorded in the diet, was higher, accounting for 50.54% and 10.07% of the total, respectively.
与历史资料进行比较发现,曾是幼鱼重要饵料的鲬类所占比例极小,其质量百分比仅占1.81%;而以前未曾记录的虾虎鱼类在食物中所占比例较高,其质量百分比达50.54%;等足类以前也未曾记录,其出现频率达10.07%。
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Results Fever, pneumonia with unknown causes, death with unknown causes, diseases similar the flu and numbers of patient in emergency department have been monitored in more than 80 percent of hospitals. However, the proportion of reported hematosepsis and infectious shock were 51.3% and 63.7%, respectively. Moreover, the surveillance rate of pathogen and toxicosis were lower and there was no earlywarning ability in public health emergency.
结果 80%以上医院对发热、不明原因肺炎、不明原因的死亡、流感样疾病和急诊入院人数实行了监测并能及时上报异常情况;对败血症/感染性休克监测和报告的比例分别仅为51.3%和63.7%;对病原生物和中毒的检测能力较低;对各类突发公共卫生事件没有预警能力。
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1Unequal number of univalents with decreased degree of synapsis and lagging chromosomes occurred in meiosis.The abnormal chromosomal behavior correlated with heterogenicity gave rise to unequal allocation of homogenous chromosomes to daughter cells and resulted in the deletion of functional chromosoms,thus led to the occurence of a certion proportion of aborted pollens.(2)The interaction between genetic imbalance and such environmental factors as temperature,etc.,further drew forth physiological and even structrural imbalance,with abnormal development of pollen mother cells and tapetal cells,and consequently resulted in no or very few production of pollens.The difference in the interaction between environment and genotype reflected on the unstability of pollen abortion in different years.
1在减数分裂中有数目不等的联合程度较差的单价体以及落后染色体出现,这种与异质性相关的染色体行为异常,导致同源染色体向子细胞的不均衡分配,造成具功能染色体的缺失,从而引起毛白杨一定比率的败育花粉的产生;(2)遗传上的不平衡与温度等环境因子相互作用,进一步引发毛白杨生理乃至结构上的不平衡,花粉母细胞和绒毡层细胞发育异常,从而造成不产粉或产粉较少;环境与基因型互作的差异性导致了花粉败育的年度不稳定性。
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However, the proportion of ingredients in premixed isocratic mobile phases can be more accurately controlled than in those delivered by most pumping systems.
泵系统在定量分析中要能够耐腐蚀性流动相物质,并在较长的时间内保持一个恒定的流速和极小的波动。
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However, the proportion of ingredients in premixed isocratic mobile phases can be more accurately controlled than in those delivered by most pumping systems.
然而,先前的按比例预混合流动相仍然要比这些多元泵系统控制的精确。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。