为探索...
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This papers explore the correlation between the thickness of blade、cuticula、epidermis cells、fence form、sponge form,the ratio of the fence form and sponge form,the layer of the fence form,the length of cell and the yield,suitable system,resistance of the blade anatomical structure by paraffin section method and observing in optical microscope using tea varieties in Guangxi,such as the No.1 of Guilv, and provide a scientific basis for tea scientific research and production.
本文主要对近年来广西选育成的桂绿1号等新品种品系通过石蜡切片法,并采用光学显微镜观察叶片解剖结构特征,探索叶片解剖结构中的叶片、角质层、表皮细胞、栅栏组织、海绵组织等厚度及栅栏组织与海绵组织厚度的比值、栅栏组织层数、细胞长度等与产量、适制性、抗逆性之间的相关性,为茶叶科研、生产利用提供科学依据。
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The technique of separation lymphocytes of peripheral blood from Grass Carp (Ctenpharyngoden idellus Cuvier et Valencines) was explored.
通过对分离草鱼外周血淋巴细胞技术的探索,发现比重为1.080-1.085的Ficoll-Urografin或Percoll两种分离液均可将外周血中淋巴细胞100%地分离出来。
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The gasification efficiency increased and the molar fraction of H2 decreased with an increase in the reaction temperature. The decomposition of PVA was more complete at higher temperatures. At 24 MPa, 500℃ and 120 s, the TOC remove rate, the carbon gasification rate and the hydrogen gasification rate were up to 71.46%, 67.97% and 157.24% respectively. A change in the residence time had no significant effect on the molar fraction of gas production but an increase in the residence time could enhance the gasification efficiency of PVA. It was found that the intermediates were mainly alkane, cycloparaffin, aromatic hydrocarbons, and low-molecular weight acids. It was supposed that PVA was degraded into small molecules through breaking of C-C bonds. Parts of the molecules were converted into H2, CO, CH4 and CO2 while some was converted into aromatic hydrocarbons.
过程探索发现:反应温度的升高能提高PVA气化效率,但气体产物中H2的含量随反应温度的升高有所下降;随着反应温度的升高,PVA分解趋于彻底,在压力24MPa、温度500℃、停留时间120s的条件下,TOC去除率、有机碳气化率和氢气化率分别达到71.46%,67.97%和157.24%;停留时间的变化对气体产物含量没有明显的影响,但延长停留时间能提高PVA的气化效率;PVA气化反应中间产物主要为链状烷烃、环烷烃、芳香烃及小分子酸,根据中间产物出现的顺序推测PVA的降解为由C-C键断裂形成小分子物质,这些小分子物质一部分转化为H2,CO,CH4和CO2,一部分形成难降解的芳香族化合物。
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Analysed existing dactylogram to collect detailed rules, commutation, dry to valid area, gray scale the respect such as deflection of wet, position undertook be discussinged deep to the influence of dactylogram picture quality, the is based on brim detail to nod information dactylogram picture quality that offers a kind to improve evaluates a method, the dactylogram image to be being collected undertakes quality is evaluated, the pretreatment that is image provides the dactylogram picture with higher quality.
分析了现有的指纹采集细则,对有效面积、灰度变换、干湿、位置偏移等方面对指纹图像质量的影响进行了深入的探索,并提出一种改进的基于边缘细节点信息的指纹图像质量评估方法,对采集到的指纹图像进行质量评测,为图像的预处理提供质量较高的指纹图像。
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Chien-Shiung Wu was one of the most distinguished physicists of the twentieth century.She had sharp in- sight and dared to innovate.She had the courage to explore dauntlessly.
吴健雄是20世纪最杰出的物理学家之一,她有敏锐的洞察力和敢为天下先的创新精神,有不畏艰险勇于探索的拼搏精神,有精益求精的求实精神。
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It is major work to present the tectonic time duration system of the strain rate method, which is an original exploration.(1) Principle: Its basis is the stress and strain rule depending on strain capacity in steady-state stress field, but not the radioactive decay law depending on radiation dose in invariable radiation field. This can be simplified as a process of differential stress-strain rate-strain capacity-time duration calculating.
工作重点是梳理出应变速率法构造时限定年系统,属原创性探索:①原理:不是基于放射性核素衰变规律,而是基于应力应变规律;不取决于恒定辐射场的辐射剂量,而取决于稳态应变场的应变量,可简括为差异应力-应变速率-应变值量-计算时限的求索过程。
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The value theory of Post-modernism is not only defection but also exploration for human future life.
后现代主义价值论不仅仅是叛逆,也是在为人类生活探索未来。
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In a few years, with the growth and development, we have gradually set up a professional team that is a combination of programming, designation, manufacture, installment, and maintenance. We have senior programming, designing and manufacturing personnel, and we stick to the faith that ' quality is the life of an enterprise, and honesty is the foundation', continually deflower the pith from the western, Hong Kong and Macao, then syncretize it with the traditional Chinese esthetics, and devote all our attention in the development of the expression marking systems' functionality, security, and beauty.
经短短几年的成长和发展,我们逐步组建了集规划、设计、制作、安装、维护为一体的专业团队;并拥有资深策划、设计、制作人员、我们坚持"质量是企业的生命,诚信是企业之根本"的经营理念,在研发中不断吸取欧美及港澳同行的精华,融合中国传统美学元素,在表达标识系统功能性、安全性、美观性方面悉心钻研、探索发展。
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These properties were mechanical properties, color and optical characteristics, density and deliquescent effect, thermal properties. On the basis of these, the mechanisms of excellent mechanical properties of the spider silk fibers were investigated on the following aspects.
本文以广泛分布于我国各地的大腹圆蛛为研究对象,在研究分析其三种主要的丝纤维——牵引丝、蛛网框丝、包卵丝的力学性能、色泽、密度与吸湿性以及热学性能的基础上,从以下几方面探索了蜘蛛丝优异力学性能的形成机理。
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This resulted in their being able to demystify more and more secrets about life and the universe.
中国古代杰出的科学家用自身通过修心而开发出来的超常能力来探索宇宙、时空、生命的奥秘,即科学家和探测手段合为一体。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。