凹缝

【化】 groove joint

凹的英语翻译：

concave; dent; fovea; hollow
【医】 concavity; depression; faveoli; faveolus; fossa; fossae; fovea; hollow
koilo-; lenus; pit; sink; venter

缝的英语翻译：

seam; sew; slot; stitch
【化】 opening
【医】 crevice; nesis; raphe; rhaphe; seam; sutura; suturae; suturation
suture; suture joints; suturing