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concave-concave [kɒnˌkeɪvkɒn'keɪv, kɑːnˌkeɪvkɑːn-]
gen. 双凹
archit. 双凹形的
auto. 双凹的两面凹形的
tech. 两面凹的; 凹凹; 双凹 (的)
concave-concave
: 426 phrases in 41 subjects
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