词汇	nrz transistor
释义	nrz transistor 不归零
随便看	black heat-proof varnish black heat-resisting paint black heel Black heel disease black heel nylon stockings black-height blackhole list black hole lung black hole neighbourhood Black Hole No Hair Theorem black-hole numbers blackheads black-heads blackhearted black-hearted blackhearted and cruel Black-hearted and cruel blackheart malleable black heart malleable castings blackheart malleable cast iron black heart malleable cast iron blackheart malleable iron black heart malleable iron black-heart malleable iron black heart melleable cast iron