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次生     
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  secondary
     Studies on Gene Engineering of Antibiotic Secondary Metabolic Regulation in Streptomyces Coelicolor
     天蓝链霉菌抗生素次生代谢调控的基因工程研究
短句来源
     Study of Petrological Characteristics and Thermodynamic Mechanism of Secondary Pores in Deep Reservoirs, Songliao Basin
     松辽盆地深层储层岩石学特征及次生孔隙形成热力学机制
短句来源
     Dynamics of Soil Properties and the Effect Factors Among Secondary Successive Communities in Mt.Jinyun
     缙云山森林群落次生演替中土壤特性动态变化及其影响因素研究
短句来源
     Study on Biological Characteristics of Paecilomyces lilacinus(Thom.)Samson Str.NH-PL-03 and Its Biological Effects of Secondary Metabolites
     淡紫拟青霉菌(Paecilomyces lilacinus(Thom.)Samson Str.NH-PL-03)生物学特性与次生代谢物质生物效应研究
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     The Influence of Cr to Secondary Hardening Effect of Mo-Steel
     铬对钼钢的次生硬化的影响
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  driven secondary
     A 3D anisotopic Algebraic Stress Model (ASM) getting over the shortcoming of isotropic model is established to simulate the turbulencedriven secondary flow in a straight channel.
     建立各向异性三维代数应力紊流数学模型(ASM)克服了各向同性紊流模型的缺点,模拟出顺直河道中次生流现象;
短句来源
  secondary chemicals
     Effects of major secondary chemicals of wheat plants on enzyme activity in Sitobion avenae
     小麦几种主要次生物质对麦长管蚜几种酶活力的影响
短句来源
     Research Progress of Plant Secondary Chemicals
     植物次生物质研究进展
短句来源
     Studies on the Insecticided Activity Secondary Chemicals of Tropical Plant
     热带植物次生物质杀虫生物活性研究
短句来源
     EFFECT OF SEVERAL PLANT SECONDARY CHEMICALS ON THE TRICHOGRAMMA OSTRANIA PANG ET CHEN
     几种植物次生代谢物质对玉米螟赤眼蜂的影响
     R esearch achievements and progress are summarized including categories of plant secondary chemicals,their extraction methods,features of their defense against pests(e.g.an tifeedant,growth inhibiting and poisoning effects)and their a pplications in botanical insecticides.
     综述了植物次生物质的种类、提取方法、对昆虫的防御作用特点(即拒食、抑制生长发育和毒杀作用)、在植物源农药开发上的应用等方面研究的成果与进展。
短句来源
  precipitation of secondary
     Hf and Zr strict the precipitation of secondary carbides,such as M_(23)C_6 and M_6C,therefore stabilize the microstructure of alloys during long-term exposure at elevated temperature.
     H f,Zr抑制次生碳化物M23C6和M6C的生成,从而提高了合金在高温长时热暴露时的显微组织稳定性。
短句来源
     and the retained β-phase decomposes to cause the precipitation of secondary a-phase and the growth of original secondary a-phase, and the existence of type 1 and 2 of the secondary a-phase is confirmed.
     观察到1型和2型两种次生α相。 此外,热暴露还导致Ti_3Al相从初生α相内析出并弥散地分布。
短句来源
     The additinal stabilizing heat treatment was employed in order to remove the interference which there still exist precipitation of secondary phase that cause volume of the piston unstable during the piston working. The thermal expansion coefficient of eutectic Al-Si alloy piston was measured by laser-interfereatial expander from room temperature to 400C Investigation of the influence of rare earth metals on the thermal exponsion coefficient was also carried.
     本文采用附加稳定化热处理后,排除了活塞工作时仍有次生相析出,造成体积不稳定的干扰,用激光干涉膨胀仪精确地测定了共晶Al-Si系铸造铝活塞在室温到400℃的线膨胀系数,研究了稀土元素对线膨胀系数的影响。
短句来源
     The results show that there is no obviously effect of boron content on the liquidus and the precipitation of secondary γ′ phase of IC6 alloys, but the addition of boron will lower the solidus significantly ( thus widen the range between solidus and liquidus ) and will promote the formation of low melting point phase M 3B 2. Moreover, B addition would make liquidus of interdendrite zones inter linked each other in a very wide range of temperature.
     研究结果表明 ,B含量对合金液相线、次生γ′的析出次序与析出温度影响不大 ,但能使合金固相线显著下降 (从而使合金的凝固范围变宽 ) ; 同时 ,B含量的增加还促进了合金中低熔点相 M3B2 的析出并使合金枝晶间的液池在很宽的温度范围内保持连通。
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  secondary
The 3D QSAR studies using Apex 3D expert system led to the identification of the pharmacophore in terms of common biophoric sites and secondary sites for interacting with PPARγ receptors.
      
1) for R isomers with correlation coefficient r =0.9, chance= 0.05 and match= 0.47 has four biophoric sites and three secondary sites while the best model for S isomers (model no.
      
2) with correlation coefficient r =0.86, chance =0.01 and match = 0.45 has three biophoric sites and two secondary sites.
      
Biological Evaluation of a Secondary Metabolite, 9-O-methylfusarubin, from Fusarium oxysporum
      
In this paper a new mathematical model of secondary frost heave is presented.
      
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  secondary pool
The increase in relative content of polysaccharides during needle senescence reflects the involvement of photosynthetic products into the secondary pool of carbon metabolites.
      
Resolution Testing For a positive Secondary Pool, test each of the individual specimens in that Secondary Pool.
      
  driven secondary
Model for calculating low-current moderate-pressure RF discharges with photon-driven secondary electron photoemission from the e
      
Turbulence-driven secondary flows in a curved pipe
      
If the torque exerted on a fluid element and the source of streamwise vorticity generation are analyzed, a turbulence-driven secondary flow is found to be possible in a curved pipe.
      
A third pair is found near the outer bend and is the turbulence-driven secondary flow.
      
Therefore, experimental and numerical evidence together lend support to the formation of a pair of turbulence-driven secondary cells in curved-pipe flows.
      
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  secondary chemicals
However, because of differences in seasonal cycles, circadian rhythms and secondary chemicals, many species may use the same primary attractant, without much interspecific attraction.
      
It is presumed that the high diversity of secondary chemicals, paralleling that of the plant species, makes a generalist strategy impractical.
      
However, the concentrations of secondary chemicals vary with season, environmental conditions, and geographical location.
      
The hypothesis that plant secondary chemicals were responsible for creating such barriers to herbivory was tested using heliconiine species as bioassays, in which reduced growth rates indicated presence of chemical barriers to feeding.
      
Quantitative variation in leaf nutrients, moisture, and secondary chemicals all appear to contribute to ant preferences for individuals and tissues of highly palatable plants.
      
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