例句與造句

1. They tell us about the direct exposure of an object's surface to space in the absence of a vacuum.
2. Since the atmosphere surrounds the earth, which itself is a sphere, the volume of atmosphere bearing on any unit area of the earth's surface is a truncated cone ( which extends from the earth's center to the vacuum of space; obviously only the section of the cone from the earth's surface to space bears on the earth's surface ).
3. It's difficult to find surface to space in a sentence. 用surface to space造句挺難的