The yellow outline shows the median sea ice extent observed by satellite sensors in September and March from 1979-2000. "extent" is the total area with an ice concentration of at least 15 percent.
黄色勾勒出由卫星传感器自1979——2000年所观测到得海冰面积的在九月和三月中间范围。
2
Objective To choose suitable monitoring index and general anesthetic blood concentration for median nerve somatosensory evoked potential(MnSSEP)during operation.
目的为术中正中神经体感诱发电位监测选择合适的监测指标和全麻药浓度。
3
The median lethal concentration data is reliable for future biological observation.