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NEW METHOD OF EVALUATING OPTICAL MICROSCOPE QUALITY

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Chinese Science Bulletin 1988年第3期33卷 251-254页

作者：杨健王之江 Shanghai Institute of Optics and Fine Mechanics Academia Sinica

Ⅰ. INTRODUCTION The subject of optical image quality assessment has long been studied. Since the nineteenth century, many criteria and merit functions have been proposedt, such as the two-point resolution, Rayleigh q... 详细信息

关键词： quarter Rayleigh coherent aberration merit constantly coherence pointed partially worthy

New Opportunities for Sodium Chlorate Producers

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China Chemical Reporter 2008年第19期19卷 14-14页

Sodium chlorate is extensively used in paper pulp,perchlorates,chlorites,water treatment,disinfection,oil recovery,oxidants,herbicides,dyeing/printing,leather tanning,explosives,printing,ink,metallurgy,mining and bromineextraction from *** the develop-ment of science,technology and economy,itsapplications are expanding *** production of chlorates in China hasbeen based on potassium chlorate for *** production of sodium chlorate hasdeveloped rapidly in the past years,but theoverall level is still to be *** addi-

关键词： constantly hasbeen printing expanding Sodium dyein

DORSAL ROOT POTENTIALS EVOKED BY STIMULATION OF GROUP Ⅳ AFFERENT FIBRES OF CUTANEOUS AND MUSCLE NERVES IN THE HIND LIMB OF RATS

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Chinese Science Bulletin 1988年第8期33卷 677-681页

作者：秦潮朱衡 Department of Physiology Xi'an Medical University

A slow potential recorded from the spinal dorsal roots following a stimulation of afferent fibres in cats and frogs is called the dorsal root potential (DRP). Generally speaking, a negative DRP that represents primary afferent depolarization is constantly produced by stimulating large diameter afferents. There is a controversy on the polarity

关键词： dorsal fibres constantly speaking stimulation evoked ROOT polarity stimulating roots

How to Explain the Meanings of Words in Middle School English Teaching

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湖州师范学院学报 1990年第1期15卷 35-37页

作者： WangHaisheng

New words are constantly coming into a *** and technol-ogy are exploring into some new field,rich and more *** wordsget new meanings too."Heavy"used to be an adjective,meaning,"Havingweight".It is now used also as a noun,meaning"a big shot".The student haveto struggle against learning words throughout the course from the very be-ginning to the very end of the *** has a very large *** is utterly impossible for a foreign language student to learn all the wordsin a *** in English teaching teachers have to select the most use-ful words for students to *** should take care to use the

关键词： vocabulary struggle exploring ginning constantly expensive throughout impossible conveying explain

INTERMOLECULAR RECOMBINATION OF PLASMID pBN119 IN E. coli STRAIN HB101

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Chinese Science Bulletin 1989年第18期34卷 1583-1584页

作者：高家国汪训明谈家桢 Institute of Genetics Fudan University Shanghai

In higher plant chloroplasts, DNA molecules have inverted repeat sequences about 20--28 kb in length, except for some legume plants--Vicia faba, for example. It has been proved that the recombination between the inverted repeats located on the same or different molecules takes place constantly. It has been proposed that inverted repeats may promote

关键词： inverted constantly repeats recombination length DNA Vicia isola mutant similarity

Official Comments on China's outward investment and economic cooperation &foreign investment in China(1-11,2015)

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China Textile 2016年第1期 46-48页

作者： Flora Zhao

Editor’s note:Recently,official from the Department of Outward Investment and Economic Cooperation of the Ministry of Commerce has made comments on China’s outward investment and economic cooperation as well as foreign investment in ***’s Outward Investment and Economic Cooperation In January-November 2015,China’s outward investment and cooperation maintained a sound development *** direct investment

关键词： cooperation outward overseas official contract constantly momentum signed struction maintained

Enhancing the Level of Opening up to Achieve Mutual Benefit and Win-win Results

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Peace 2015年第4期 10-11页

作者： Chen Feixiang Shanghai Jiaotong University

From upholding opening up strategy of mutual benefit and win-win results to developing top-level design of higher level open economy,then further to putting forward targets of actively participating in global economic governance and supplying public products and enhancing voice in institutional building,and still further to opening the developing concepts and planning,the CPC Central Committee has commanded the deep insights

关键词： putting mutual governance participating institutional enhancing expanding constantly globalization facilitating

Prices of Most Resins Went Down

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China Chemical Reporter 2008年第26期19卷 24-24页

Polyethylene In early to mid-August 2008,Sinopec Groupand CNPC constantly lowered their ex-fac-tory prices of PE (polyethylene) and the de-mand for PE in downstream sectors

关键词： downstream constantly CNPC polyethylene prices tra

DAP Sector Needs Government Assistance in 2008

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China Chemical Reporter 2008年第19期19卷 15-16页

作者： Luo Zhijie Wengfu(Group)Co.,Ltd. Wang Ying,China National Chemical Information Center

2007 was not a typical year in the diammonium phosphate (DAP) *** the impact of increased demand for grain and chemical fertilizers and the tight international supply of sulfur,the price of DAP in China repeatedly hit new historical highs,and none was imported for eight consecutive *** was a net DAP importer in 2006 butturned into a net DAP exporter in *** demand for grain and chemical fertiliz-ers in the international market is still brisk in2008 and the short supply of sulfur *** serious snowstorm at thebeginning of the year affected local

关键词： fertilizers imported sulfur tight today constantly