The results showed that PU elastomers with broadglass transition temperature and damping temperature could be prepared with three soft segments by semi-prepolymer method at appropriate conditions.
结果表明，选择适当的软段组分和制备条件，通过半预聚体方式制备三软段聚氨酯弹性体是可行的。
2
"Mental health issues in a broad sense certainly remain a primary issue, " Glass says.
“在广意上讲，心理健康问题仍然是一个首要问题，”格拉斯说。
3
The warriors carry long, ash spears tipped with hand-shaped flints as sharp as shards of broken glass, and blunt-headed stone clubs hanging from loops on broad oxhide belts.