testing cover

• 测试覆盖

testing cover的用法和样例：

例句

1. Our services cover the mechanical, thermal, chemical compsition, flammability, weathering resistance testing, safety protection testing and chemical properties.
   测试覆盖了材料的机械性能，热学性能，成分分析，耐候老化实验，安全可靠性测试和化学环保测试。