indifference relation的用法和樣例：
例句
- The indifference curve may be compared with a contour line on a map.
無(wú)差別曲線(xiàn)可以與地圖上的等高線(xiàn)相比擬。 - Are strips of a mouth thickness and back thickness basic indifference, to guarantee the binding of skinpass intervetebral collers.
均能做到裁口厚度和書(shū)背厚度基本無(wú)差別，保證了膠訂書(shū)刊外型的平整美觀(guān)。
