usable value meaning in English

使用价值

The example passed testing , has usable value
此实例经过了测试，具有实用价值。
An internal certificate has no usable value to a receiving application
内部证书没有可用于接收应用程序的值。
At $ 250 , each including a usable value of $ 30 , the millennium octopus watch provides the perfect answer for people looking for a unique and yet practical christmas gift
每个八达通千禧手表的售价为二百五十元，包括三十元可用储值，为一份既独一无二又非常实用的圣诞礼物。
Airport express passengers using octopus cards can enjoy free mtr connections to or from airport express stations if their cards have usable value and their travel on the mtr and airport express is within one hour of each other
乘客必须于首程机场快出闸后1小时内接驳地铁或在地铁出闸后1小时内乘搭机场快，而八达通卡必须备有可用票值。
Airport express passengers using octopus cards can enjoy free mtr connections to or from airport express stations if their cards have usable value and their travel on the mtr and airport express is within one hour of each other ( for in - town check - in customers , the mtr trip immediately before check - in is free . )
乘客必须于首程机场快线出闸后1小时内接驳地铁或在地铁出闸后1小时内乘搭机场快线，而八达通必须备有可用票值。