i have several coats but only one pair of trousers.
我有几件上衣,但只有一条裤子。
only one pair of measurements will contain real values, while the other pair will contain not-a-numbers (nans).
仅有一对度量包含实数值,而另一对度量将包含not-a-numbers (nan)。
there was a time in my life when i owned only one pair of shoes - a size too small with holes in them.
我生命中有一段时间只有一双鞋子-尺码偏小,上面还有很多洞。
test results showed the homogenous error of sensitivity distribution of the sensor was 13%, which is much better than the capacitance sensor with only one pair of electrodes.
实验证明由该种「复合式极板」构成的电容式浓度传感器的检测场均匀性误差可达13%,远远优于单对极板的该项指标。