如何使用 "expectance" 造句

1. Life expectance : continuous operation at rated voltage and normal temperature & humidity .
预期寿命:指在额定电压及正常温度,湿度条件下连续运转.
2. Modern school of currency and school of reasonable expectance systematized methods of substantial evidence analysis .
现代货币学派和理性预期学派将实证分析方法系统化。