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1·If the glass were kept hot enough, it would flow over the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.

如果玻璃保持足够的温度，它就会在熔化的锡中流动，直到顶部表面也变得平整、水平，与底部表面完全平行。

2·The bottom surface (5) is designed to contact a handle (b).

该底面(5)设计用于与手柄(B)接触。

3·A top surface and a bottom surface are defined on the base plate.

该基板上定义一顶表面和一底表面。

4·A second concave part is formed on the bottom surface of the base plate.

该基板的该底表面形成一第二凹陷部。

5·The bottom surface is bonded with adhesive paper to cover the through hole.

所述底面粘设有胶纸，以遮盖所述通孔。

6·A package with pins distributed over much or all of the bottom surface of the package.

一种封装，插脚分布在封装底部的大部分或全部表面。

7·The concrete foundation bottom surface should be smooth solid, not into the pot bottom.

混凝土基础底面要平整夯实，基础底部不能作成锅底状。

8·The top surface of the wing box has two skin panels, and the bottom surface has three panels.

翼盒的顶部有两块表面板材，底部有三块板材。

9·This paper tries to provide a new method of the plow bottom surface design by a mathematical method.

本文试图为犁体曲面的设计提供一种新的设计方法——用数学的方法设计犁体曲面。

10·Researchers said the wear on the bottom surface suggests that it could be the oldest known limb prosthesis.

研究人员说，穿底部表面上表明它可能是最古老的下肢义肢。

底面

1·It is usually expressed by the decibels which is the straight beam probe tested the second time subtracting from the first bottom surface echo amplitude.

通常用纵波直探头测试的第几次与第一次底面回波幅度所差的分贝数表示。

2·The bottom surface (5) is designed to contact a handle (b).

该底面(5)设计用于与手柄(B)接触。

3·When in use, the inflatable pillow in the middle position of the bottom surface of the desk cloth can be inflated when a nap is needed, so as to achieve more comfortable sleep;

使用时，需要午睡时， 可将桌布底面中间位置处的充气枕充气，以更加舒适的睡眠；