equipped with a calibrated continuous temperature monitoring system with sensors located at points representing greatest temperature variability and temperature extremes;
preferably equipped with continuous humidity monitoring devices with sensors located at points representing humidity extremes;
温度:representing greatest temperature variability and temperature extremes
湿度:representing humidity extremes
extremes理解成极限值,温度冷热店,湿度的高湿低湿点
这里面的variability怎么理解