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紫罗烯
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紫罗烯
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工学
类维生素
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Ionene
紫罗烯
一种芳香烃。即1,2,3,4-四氢-1,1,6-三甲基萘。
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down-hill method
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downhole pressurized jet assisted drilling system
downhole throttling method
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down-hole tool
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down-ladder
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downlead
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downlink
download
down mattres
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