每半月测定一次冷却特性曲线的翻译：Once in every half month determination of cooling characteristics curve 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Measured every half a cooling curve

Once in every half month determination of cooling characteristics curve

Each half a month determines a cooling characteristic curve

measured every half-month cooling curve

Once in every half month determination of cooling characteristics curve