| English | Chinese |
| complex structure | 复杂构造含煤岩系产状变化很大,断层发育，有时受岩浆侵人影响严重的构造 |
| extremely complex structure | 极复杂构造含煤岩系产状变化极大，断层极发育，有时受岩浆侵人严重破坏的构造 |
| Since the factor having the greatest influence over blasting is geology, complex geologic structures can make small fragmentation a true blast design challenge | 由于对爆破影响最大的因素是地质、所以复杂的地质结构会使小规模的岩石爆破成为真正的爆破设计难题 |