rosin nitrile

例句：

1. 3. 树脂例句：1. The painter used rosin nitrile to smooth the surface of his canvas.
   画家使用松香和硝化棉来平滑他的画布表面。
2. 2. The engineer used rosin nitrile to reinforce the structure of the bridge.
   工程师使用松香来加固桥梁的结构。
3. 3. The scientist discovered that rosin nitrile could be used as a solvent for certain chemicals.
   科学家发现，松香可以作为某些化学物质的溶剂。