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汉语拼音：xià bù

位于下边或下面的部分，尤指鸟或动物身体腹侧部分之一。

1. 谓物体在下的部分。如：古碑的下部已断裂，且有缺损。

2. 人体的下半部。

   《百喻经·倒灌喻》：“昔有一人，患下部病，医言当须倒灌乃可瘥耳。”

3. 指人的阴部。

   鲁迅 《南腔北调集·谣言世家》：“ 钱大王 治世的时候，人民被刮得衣裤全无，只用一片瓦掩着下部。” 茅盾 《小巫》二：“老爷怪声笑着说，随手把枪移下去，在 菱姐 的下部戳了一下。”

• a substructure of timber piles

  木桩下部结构

• The lower part of the pipe is separable from the upper part.

  管子的下部可与上部分开.

• The lower curve marks the exclusion threshold for data pairs.

  下部曲线标志出对数据对的排除域.

• Both the upper and lower sandstone units of the precipice are oil - bearing.

  普雷西皮斯的上部和下部砂岩单元都含油.

• H 2 O absorption is predominant in the troposphere, particularly the lower troposphere.

  H2O吸收在对流层, 特别在对流层下部起着主要作用.

• The lower portion of the disc is submerged within an oil sump.

  圆盘下部浸在油池中.

• Most of the chlorofluoromethanes reside in the lower stratosphere.

  大多数氯氟甲烷存留在平流层下部.

• The lower part of the measuring cup houses a thermoelectric cooler.

  量杯的下部有热电制冷器.

• The climber throws a stout rope over a large lower branch.

  攀登者把一根坚韧的绳子掷挂在下部的大树枝上.

• In the lower part of the section bioturbation is a common feature.

  剖面的下部常见生物扰动现象.

• Consequently angularities are apt to occur both below and above unconformities.

  因此,交角往往出现在不整合面的上部或下部.

• Fatigue brought on dark rings under her eyes.

  劳累使她眼睛下部出现了黑圈.

• He was wounded in the lower leg.

  他的腿下部受伤.

• In the early 1960 s a worldwide aerosol band was discovered in the lower stratosphere at 17 - 24 km.

  在六十年代初期,在17-24公里平流层下部发现世界范围气溶胶带.

• Her face was pale and rigid. Only in the lower part of It'something quivered.

  她的脸是苍白的,不动的.只有脸的下部在打颤.