左上区域相对远离银道面，恒星相对稀少。
The area in upper left is farther from the galactic plane and contains fewer stars.
但有关这类办公桌是否有效的数据一直相对稀少。
But data on the effectiveness of the desks has been relatively scant.
但是之前位于水面附近的目击和录音都说明抹香鲸在那儿相对稀少。
But previous sightings and sound recordings closer to the surface suggested that the sperm whales are relatively few and far between.
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