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- 与 in the mass 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Study on the rapid Propagation Technique of Lycoris. Herb and get follow results: In the period found of axenic clone 0.1%HgCl2 is the best disinfector to deal with the Lycoris" bulb ,as to neat part, such as root, leave, and bulbil, is fit to use 0.1%HgCl2 antisepsis 7min. And found the best effect is the bulb scale with base. Root, leaf and bulb scale without base all were not inducement adventitious buds. Different position of bulb had different culture effect. 3-15 of middle part of bulb can be induced most adventitious buds but inner and outer of least it. Incised the bulb with three types (pieces of eight, pieces of six, piece of four), and found the type of pieces of six is best to Lycoris mass production. L.sprengeri is fit MS+BA5mg/l+NAA0.1mg/l and L.squamigera is fit MS+BA5mg/l+NAA0.5mg/l, but the medium fit to culture L.longituba haven"t be found.In the period of Subculture-Found of mass production, the most multiplication of adventitious buds in MS+BA5mg/l+NAA0.5mg/l during subculture of L.sprengeri, L.squamigera.
石蒜属植物快速繁殖技术研究中,在无菌无性系建立阶段:鳞茎以0.1%HgCl_2消毒10-12分钟效果最好,而叶、根尖、鳞芽等较干净部位选用0.1%HgCl_2消毒7分钟;用三种石蒜属植物的叶片、根尖、鳞芽及带基盘与不带基盘鳞片进行培养,以带基盘鳞片诱导分化效果最理想,鳞芽易培养出芽,但数量有限,而叶片、根尖与不带基盘鳞片均未诱导分化;带基盘鳞片为石蒜属植物快速繁殖最佳外植体,以鳞茎中部3-15层芽诱导率高,较外层稍次之,内部鳞片诱导率最低;选用八等分法、六等分法、四等分法切割鳞茎,六等分法综合效果最好;每外植体带三鳞片培养最为适宜;三种石蒜属植物各自适合的培养基成分不同,换锦花在MS+BA5mg/l+NAA0.1mg/l中培养效果最好,夏水仙为MS+BA5mg/l+NAA0.5mg/l,而白花长筒石蒜在各培养基组合中培养效果均不理想,其适合的培养条件有待于进一步研究。
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In this paper,the influences of the location of mass centre on the moving stability of a motorcycle has been studied by way of establishing a mechanical model,and further,a general principle has been proposed to locate the mass centre in design of motorcycle s.
本文通过建立摩托车动态力学模型,分析了质心位置对车辆稳定性的影响,提出了质心位置设计的一般原则。
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The transformation of Communicant Center to Audience Center is a basic trend of development of the mass communication in the West up to now. Since the beginning of 1980s, the seeds of Audience Center have appeared to some extent in mass communication in China; however, a complete Audience Center has not been found so far.
由传者中心向受众中心转移,是目前为止西方大众传播事业发展的基本趋势。80年代以来,我国大众传播事业亦出现一定程度上的受众中心之萌芽,然迄今为止,真正的受众中心远未确立。
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In view of geological records preserved from different regions of the world are not identical, it's suggested that, when correlating the Ordovician-Silurian boundary, at the global boundary stratotype section, the FAD of N. persculptus be selected as the biomark, the transgression event identical to the FAD of N. persculptus as the auxiliary physical mark and the mass extinction and chemical anomaly events respectively as the auxiliary biomark and chemomark. In some regions with few graptolite, the Ordovician-Silurian boundary should be indicated by the auxiliary marks, such as the transgression event, mass extinction or chemical anomaly event, with the other fossil such as conodont nearest to other geological events as the provincial biomark for correlation. In other regions with much stratigraphic hiatus originated from the regression, the Ordovician-Silurian boundary should be marked by the regression-transgression event nearly relevant to the N. persculptus Zone.
鉴于不同地区留下的地质记录不完全相同,奥陶/志留系界线对比方法不同:在界线层型剖面上,以N.persculptus的首现为生物标志,以与之基本一致的海侵事件为辅助的物理标志,以生物集群绝灭事件和化学异常事件为辅助的生物和化学标志;在笔石极不发育的地区,则以海侵事件、生物绝灭事件或化学异常事件为辅助标志,以与其相距最近、并且具有区域对比性的其它门类化石作为界线对比的生物标志;对于由于海退事件所造成地层缺失很多的地区,则以海退/海侵事件作为划分界线的物理标志,并以相映的海侵事件的开始作为奥陶/志留系的分界。
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Past investigation found the rock in the right dam foundation composing of granite(γ_4~3~γ_5~1) in dyas- trias,which has a very complicated mechanical environment. The complicated phenomenon is as follows: tectonism, alteration, rock mass demobilize, rock mass stress release and other factors.
前期的调查表明其右岸岩体力学环境复杂,表现为:构成右岸坝基岩体主体的二迭~三迭纪花岗岩(γ_4~3~γ_5~1)受构造变动、蚀变、风化卸荷等因素的影响形成了坝基软弱岩带和坝肩上部卸荷松弛岩体。
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In the field of mass communication studies, one of the most disputant topics is the role mass-audiences play in the process of meaning production and communication.
是主动地、批判性地接受信息,还是被动地受信息的控制和引导,乃至完全丧失自己的独立性与主动性,沦落为传媒的奴隶?
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Failing this mankind would stand at the bar of abstract justice (for there may be no posterity to judge) as the mass murderer of life generally, his own included, and mass disrupter of the intricate planetary development that made life in its present glory possible in the first place.
人类如果做不到这一点,那就会成为大规模荼毒生灵的凶杀,成为大规模破坏地球错综复杂的进化(是这种进化最终形成了目前这种生命繁荣的景象)的罪魁祸首而受到抽象意义上的法庭的审判(因为到那时可能已经没有子孙后代来审判他了)。
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In the history of communication, even" communication model has its own factor of "affirmation" and ""negation". Mass communication is a ""negation" to personal communication while network communication turns to be a negation to mass communication, which means a "double negation.
在人类的传播史上,每一种传播方式都包含着"肯定"和"否定"的因素,大众传播是对人际传播的一种"否定",而网络传播则是对大众传播的另一次"否定",也就是"否定之否定"。
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However, MSR is a strongly endothermal reaction, which is usually limited by heat and mass transfer and shows a lower dynamic responds and lower utilization ratio of catalyst in the catalyst bed. Therefore scientists begin to study micro-channel reactors which have better transport characteristic of heat and mass.
甲烷蒸汽重整反应是强吸热过程,该反应在固定床反应器中因受热质传输的限制,存在动态响应慢、催化剂利用率低等问题,人们转而研究具有良好传热传质性能的微通道反应器。
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Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.
分析了现有测试方法的优缺点,提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构,分析得到了推进剂传热的物理模型和数学模型,设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序,给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布,分析了温度场的分布规律和影响传热的主要因素,求出了推进剂质量加权平均温度和最大肉厚1/2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序,求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差,得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素,求出了推进剂质量加权平均温度和最大肉厚1/2处温度及两者之间的最大偏差与均方差,讨论并确定了能代表130和航90推进剂温度的特征点的位置。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。