extension cord
延长线
hair extension
发延长
brand extension
品牌延伸
by extension
相关地；引申开来
extension service
推广服务
crack extension
裂纹扩展；裂纹扩张
extension set
分机；增设装置
research and extension
研究与推广
extension number
分机号码
extension of time
延期；延长时间；延长合约期
file extension
文件扩展名；档案延伸
extension methods
扩展方法
university extension
大学附校；大学推广教育
extension spring
拉簧；牵簧，牵引簧；拉伸弹簧
extension line
延长线；分机线；引出线
time extension
时间延长
credit extension
援权（信用状期限延长）
elastic extension
弹性伸长；弹性延伸
extension telephone
n. 电话分机
extension of a visa
签证延期
extension of a contract
合同延期
extension cord
延长线
hair extension
发延长
brand extension
品牌延伸
by extension
相关地；引申开来
extension service
推广服务
crack extension
裂纹扩展；裂纹扩张
extension set
分机；增设装置
research and extension
研究与推广
extension number
分机号码
extension of time
延期；延长时间；延长合约期
file extension
文件扩展名；档案延伸
extension methods
扩展方法
university extension
大学附校；大学推广教育
extension spring
拉簧；牵簧，牵引簧；拉伸弹簧
extension line
延长线；分机线；引出线
time extension
时间延长
credit extension
援权（信用状期限延长）
elastic extension
弹性伸长；弹性延伸
extension telephone
n. 电话分机
extension of a visa
签证延期
extension of a contract
合同延期
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