undercoatings造句

例句与造句

1. It is also more open and features narrower leaves with white undercoatings and soft white rather than pink spring flowers.
2. Other benefits of petroleum-based rust protection include the self-healing properties that come naturally to oils, which helps undercoatings to resist abrasion caused by road sand and other debris.
3. This has several objectives : to produce a barrier that excludes moisture and oxygen from the metal surface, to ensure against further introduction of contaminating elements by handling, and to provide a protective layer over anti-corrosion undercoatings.
4. It's difficult to find undercoatings in a sentence. 用undercoatings造句挺难的