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单词
fir
释义
fir
Encyclopedia
农学
〔用材树种〕
释
fir
冷杉
松科(Pinaceae)冷杉属(Abies)植物的统称。常绿乔木,树干端直,树形优美,是高山地带的顶级群落组成树种,也是很好的园林绿化观赏树种。
理学
裸子植物
释
fir
冷杉属
裸子植物松目松科的一属。
Mathematics
>代数学>环论>释义
free ideal ring (fir)
自由理想环
fir
= free ideal ring
自由理想环
随便看
Safety Set
safety shoes
safety shutdown time
safety sign
safety standard
Safety standard for hydraulic structures
safety standards for passenger aerial cableway
Safety Stock
safety supervision of blasting projects
safety supervision of drilling operations
safety supervision of industrial pipeline
safety supervision of long-distance pipeline
safety supervision of pipeline
safety supervision of pipeline design
safety supervision of pipeline Manufacturing
safety supervision of utility pipeline
safety supervision performance measurement
safety supervision system for agricultural genetically modified organisms
safety surveillance and control of commercial vehicle operations
safety switch
safety symbol
safety system
safety system engineering
safety system function
safety system model
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