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铁路桥梁养护维修
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铁路桥梁养护维修
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﹝铁路工务养护维修﹞
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railway bridge maintenance
铁路桥梁养护维修
对钢梁、混凝土梁、支座、墩台基础、涵渠、明桥面、桥渡等桥梁设施和设备进行的检查、养护和维修。
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germplasm bank
Germplasm Bank of Wild Species of Southwest China
germplasm degeneration in aquaculture
germ plasm enhancement for maize
germplasm evaluation
germplasm identification
germplasm innovation of plant
germplasm monitoring
germplasm preservation
germplasm regeneration
germplasm resource descriptors
germplasm resource field investigation
germplasm resources
Germplasm Resources Center of Landscape Plants, China
germplasm resources of landscape plants
germplasm resources of vegetables
germ plasm theory
germ pore
germ ring
germ theory
germ tube
Germán Arciniegas
Gero Crucifix
gerontic demography
gerontocracy
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