bulge

1. One reason for that is a demographic bulge that will soon subside .

一个原因就是人口膨胀逐渐平稳。

2. Older stars reside in the bulge at the center of the galactic disk .

古老的恒星驻留在位于星系的圆盘中心凸起的部分。

3. The ' picket fence ' therefore had a decided upward bulge in the middle .

因而“栅栏”图表在中间部分有一大块明显的凸出部分。

4. Near the equator , the surface of a planet stays in a relatively flattened bulge under the pressure of centripetal forces .

在向心力的作用下，一颗行星接近赤道地带的表面呈现相对平坦的隆起地形。

5. The baby boomers were one such bulge .

婴儿潮就是这类暴增的一例。

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