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1·Growing on a lower surface of a structure, as fungi on leaves.

长在下边的；下位的：长在一个结构的下部表面上，比如叶子上的菌类。

2·One time clamping can finish the cleaning of the upper and lower surface of the profile.

一次装夹就可完成型材上下焊缝的清理。

3·The absorbing layer is clamped between the upper surface layer and the lower surface layer.

吸收层夹设在上表面层和下表面层之间。

4·The beam is one cuboid with curved upper and lower surface fitting each other closely and fixed together.

横梁是个近似的长方体，它的上表面是曲面与面板的下表面相吻合，两者固定连接。

5·To surface tension and foam hight, we found that APG behaves lower surface tension and higher foam hight.

另外，还对烷基糖昔的表面张力和起泡高度进行了测试，结果表明，它具有起泡高度高、表面张力小的优点。

6·Ursidae that have a shaggy coat and a short tail and walk with the entire lower surface of the foot touching the ground.

熊一种通常具危险的熊科哺乳动物，有浓密的毛发和短尾巴，行走时脚的较低表面触地。

7·The aerodynamic characteristics of an airfoil with a jet issuing from its lower surface are investigated by numerical method.

应用数值方法模拟了飞行器升力面下表面喷气的增升作用。

8·The machining of valve bore with diamond reamer features high productivity, long service life of reamer and lower surface roughness.

采用金刚石铰刀加工阀孔，生产率高，刀具寿命长，表面粗糙度低。

9·Of a leaf shape; round with the stem attached near the center of the lower surface rather than the margin as a nasturtium leaf e. g...

一种叶子形状；圆形，其茎依附在较低表面的中心附近而非边缘，比如旱金莲花叶等等。

10·The lower surface roughness and smooth microform by electrochemical finishing not only enhance highly the life of gear, but reduce the noise.

齿面经过脉冲电化学光整加工后表面粗糙度低、微观几何形貌平滑，不仅使齿轮寿命大幅度提高而且工作噪音也大幅度降低。