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to phrases
初步勘察
chūbù kānchá
bridg.constr.
ground reconnaissance
;
preliminary investigation
hydroel.st.
preliminary investigation
(美国能源署勘察阶段分类)
tech.
advance exploration
;
exploratory investigation
;
pilot survey
;
preliminary prospecting
;
scouting
初步勘察:
6 phrases
in 3 subjects
Engineering geology
2
Hydroelectric power stations
2
Technology
2
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