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to phrases
strata sequence
bridg.constr. 层次
dril. 地层层序
eng.geol. 层序
tech. 地层顺序; 地层次序; 层序【地】; 层系; 层理次序
strata sequence: 11 phrases in 5 subjects
Bridge construction1
Earth sciences1
Engineering geology3
Geology1
Technology5