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双凹的
gen. biemarginate; biemarginatus; dicelous; dicoelous
agric. biconcave (biconcavus)
construct. double concave
met. biconcave; concavo-concave
双凹的两面凹形的
auto. concave-concave
双凹
gen. concave-concave
双 凹 的: 6 phrases in 4 subjects
Agriculture1
Architecture1
Earth sciences1
Technology3