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The optical principle of astronomy binoculars
The optical principle of astronomy binoculars Binoculars is comprised by field lens and ocular, the convex lens that is close to scenery or sunken form illuminator are...
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How to apply li of family name sclerometer correctly to measure a technology to
Technology of test of family name hardness is hardness of cloth of the afterwards on international, the name of a river in Shaanxi and Henan provinces, dimension, Shore in later a kind of technology of...
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How to apply li of family name sclerometer correctly to measure a technology
Technology of test of family name hardness is hardness of cloth of the afterwards on international, the name of a river in Shaanxi and Henan provinces, dimension, Shore in later a kind of technology of...
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Ultraviolet and optical coating can prolong telescope service life
An Jielun science and technology (Agilent) the development history that in laser interference is measured and accept rice measures a domain to have more than 35 years, edition of circuit of the telescop...
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Photoelectricity measures the national level related the test
Serial number Sequence No. Standard number Standard No. Remark of remarks of State of condition of Standard Title In English of name of standard of English of Standard Title In Chinese...
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Optical and relevant state level
Serial number Sequence No. Standard number Standard No. Remark of remarks of State of condition of Standard Title In English of name of standard of English of Standard Title In Chinese of Chinese standard...
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Photoelectricity of new generation of Beijing telescope factory analyses an inst
"Since product put into production applies 3 years, increase production value more than yuan 3600, raise profit tax more than yuan 1900, sales revenue year increase by degrees nearly 40% , anticipate t...
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[Attention] the use of projector plane illuminator and maintain
The planar illuminator on projector is become by plated film of the vacuum after plate glass brick makes the same score polishing clean. The surface extraordinary level is smooth, bright and clean degree...
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