子网屏蔽码 zǐwǎngpíngbìmǎ subnet mask Origin Definitions Defs Strokes Stroke Words Sentences Sents 子网 子網 zǐwǎng subnet subnetwork; a logical subdivision of an IP network屏蔽 píngbì verb to shield (signals) to isolate or block electromagnetic waves to prevent interference with electronic equipment码 碼 mǎ noun number something used to indicate a number; a code; a symbol; a sign