Adjective Eclipsed Form的用法和样例：
- Assume the geometry of the eclipsed form to be that given by rigidly rotating one methyl group with respect to the other.
- It is often used with a possessive adjective.
- "Good" is the positive form of the adjective, "better" is the comparative.
- "Big" in "big barn" is a descriptive adjective.
- The paint is sold in powdered form.