bitumen solubility

例句：

1. 1.The bitumen in the oil is responsible for its high viscosity.
   石油中的沥青是其高粘度的原因。
2. 2. The bitumen was found to be highly resistant to heat and pressure.
   研究发现，沥青对热和压力具有很高的抵抗性。
3. 3.The bitumen solubility test is an important factor in determining the quality of asphalt.
   沥青溶解度测试是确定沥青质量的重要因素。