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初步设计阶段
bridg.constr.	concept phase
busin.	initial design state
compr.	definition phase
econ.	conceptual phase
eng.geol.	schematic design phase
met.	initial design stage
space	preliminary design phase (stage)
tech.	design development phase; preliminary design phase; preliminary design stage
初步〔草图〕设计阶段
construct.	concept phase
初步草图设计阶段
archit.	conceptual phase
初步〔草图〕 设计阶段
construct.	conceptual phase