frame characteristic的用法和样例：
例句
- Based on the structure characteristic and sealing reliability of the solid engine, the sealing structure is disassembled and simplified at first.
摘要从固体发动机密封结构特点和密封可靠性出发，对所研究的密封结构进行分解和简化。 - The structure characteristic of top combustion and double-preheating igniter ,and its operation effect were presented in this paper.
介绍了顶燃双预热高炉煤气点火炉的结构特点及生产情况。
