expansion and contraction
[化] 伸缩率(造纸)
expansion arch
[医] 扩张弓
expansion bend
[机] 伸缩曲管
expansion bit
伸缩式钻头（钻井用）
expansion board
扩充卡[计] 扩展板
expansion bolt
[机] 引缩螺栓
expansion bus
[计] 扩展总线
expansion card
[计] 扩充插件板
expansion chamber
[电] 膨胀室
expansion circuit breaker
[电] 膨胀断路器
expansion ellipsoid
[电] 膨胀椭球体
expansion factor
[化] 溶胀因子; 膨胀因子
expansion joint
[化] 补偿器; 补偿节; 膨胀节; 伸缩接头; 伸缩缝; 伸缩接缝; 胀缝; 胀接
expansion machine
[化] 膨胀机
expansion of business
[经] 扩大营业
expansion of color
[电] 色彩延伸
expansion of credit
[经] 信用扩张, 扩大信贷
expansion of node
[计] 节点扩展
expansion of power
[法] 势力扩张
expansion of public works
[经] 公共事业的发展
