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Abstract: This is a review about regeneration of aseptic seedling of Panaxquinquefolium L., methods of the tissue and cell cultures, factors effected on the growth of the cell and the synthesis of ginsenosides.
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文摘:对西洋参试管苗的再生、组织细胞的几种培养方法、细胞生长及人参皂苷合成的影响因素做了全面的综述。 |
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Abstract: This is a review with 27 references on the chemical constituents (volatile and non-volatile components)――monoterpenes,sesquiterpenes, phenylpropanes,flavonoid,quinonoids,alkaloids,cholines and amino acids,etc.of Rhizoma Acori,including Rhizoma A
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文摘:菖蒲为较常用中药，具有多种药理及生理作用.含有单萜、倍半萜、苯丙素等挥发油成分及黄酮、醌、生物碱、胆碱、有机酸、氨基酸、糖等非挥发性成分.本文就此对两种菖蒲――石菖蒲和水菖蒲的化学成分研究状况作一综述.以对其进行全面的研究与开发. |
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Abstract: This paper adopts MC68HC908JP32 single chip micro-computer as control core of s ystem, and adopts single nerve cell PID control method, which can accurately con trol heating oil's temperature, at the same time, supervise and measure the elec tri
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文摘:以MC68HC908JP32单片机作为油加热器系统的控制核心,采用神经元控制方法,调节加热器的电压,达到控制导热油温度的目的,同时检测加热器的电流、电压。 |
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Abstract: This paper aimed at the injection forming of a kind of thin and long plastic tube,and it also gives a successful example of one mould for four parts and loop injection.
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文摘:针对一种细、长且薄的管状零件的注塑成型，给出了一种一模四件、环形浇注的成功实例。 |
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Abstract: This paper aims at applying lexicology, semantics and pragmatics to the analysis of the flexibility and indefinity and emotionality and open-ended property which lexical connotation shares to clarify the view that the connotation of a word, in E
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文摘:文章运用词汇学、语义学和语用学知识分析了词的内涵意义的灵活性、不确定性、情感性和开放性,阐明了在英语教学中词的内涵意义通过语言语境、副语言语境和非语言语境来限定和理解的观点,同时说明了文化特别是非正式文化在帮助学生理解词的内涵意义中所起的重要作用以及有助于培养学生跨文化交际意识的基本途径. |
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Abstract: This paper aims to find out the spatial logic of networks and interpret the impacts of the new paradigm on the changing of global urban system.
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摘要：本文探讨网络的空间逻辑，解释信息时代的世界城市体系变动。 |
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Abstract: This paper analysed the actuilities of reusing the cooling energy in the process of separating sodium sulphate from the brine by refrigeration,and the condition of the refrigeration system.Suggesbted an idea to reuse the cooling emergy that suit
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文摘:分析了冷冻提硝工艺中冷量回收利用的现状和制冷系统工况，提出了使冷量回收利用措施更加合理的思路。 |
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Abstract: This paper analysed the kinematic properties of ball joint hi nged on the piston rod and steering drag link of a separated assistant steering m echanism, and the equations of the path and mathematical model of pressure angle were established.
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文摘:分析了分置式转向助力机构的液压缸活塞杆与转向直拉杆相铰接的球头销的运动特性，建立了其轨迹方程及压力角的数学模型。 |
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Abstract: This paper analyses principles for power frequency inductive furnace and power factor parallel compensation and three phases balance,deals with processes of power factor compensation and three phases balance for PLC automatic power inductive fur
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文摘:分析了工频感应炉的工作原理、功率因数并联补偿原理和三相平衡原理.论述了PLC自动控制工频炉的功率因数补偿、三相平衡的过程.它对节省能源，缩短熔炼时间，改善电网功率因数有重要意义. |
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Abstract: This paper analyses the background and the course of the establishment of second board stock market, and probes into some hot spots of second board stock market such as the target, identification, standatd of the stock market, and stock circulat
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文摘:本文对二板市场的设立背景、创建历程进行了分析，对二板市场的上市对象、上市认证、上市标准、股份流通和股权管理、保荐人制度、企业管治、信息披露、交易与结算若干热点问题进行了探讨。 |
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Abstract: This paper analyses the causes resulting from the infidelity of accounting information, and puts forward some precaution measures against information infidelity.
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摘要:文章分析会计信息失真的原因，提出综合防范措施。 |
