plumb rule
导读：plumb rule读音音标
英 [plʌm ru:l]美 [plʌm rul]
plumb rule意思解释
n.锤规，垂直准测规； 英英释义 plumb rule n.a plumb line attached to a narrow board
英 [plʌm ru:l]美 [plʌm rul]
plumb rule意思解释
n.锤规，垂直准测规； 英英释义 plumb rule n.a plumb line attached to a narrow board
plumb rule读音音标
英 [plʌm ru:l]
美 [plʌm rul]
plumb rule意思解释
n.
锤规，垂直准测规；
英英释义
plumb rulen.
a plumb line attached to a narrow board
