leading edge effecttoe effect前缘: lip; snoot; leading edge效应: effect; action; influence边缘效应: edge effect; edgeeffect; end effect; fringe effect; fringing effect; frining effect; marginal effect; seashore effect刀缘效应: knife-edge effect后缘效应: back porch effect; back-porch effect下载手机词典可随时随地查词查翻译