couple: n.1.一对,一双。2.配偶,夫妇,未婚夫妻,一对舞伴。3.〔口语〕交媾;【物理学】力偶;电偶;【天文学】联星。4.〔口语〕(少数)几个,两三个。短语和例子an old couple老两口儿。 a married couple夫妇。 a pack of 20 couple二十对的一群猎犬。 a thermo-electric couple温差电偶。 a couple of
Irrigation techniques - quick coupling pipes for movable irrigation supply - technical characteristics and testing 灌溉技术.移动灌溉供水的快速联结管.技术特性和试验
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Irrigation techniques - quick coupling pipes for movable irrigation supply - technical characteristics and testing 灌溉技术.可移动灌溉设备用快速连接管.技术特性和试验
3.
Irrigation techniques - quick coupling pipes for movable irrigation supply - technical terms of delivery and testing ; german version en 12734 : 2000 灌溉技术.可移动灌溉设备用快速连接管.交货和试验的