Underground coal gasification is implemented under changefully natural environment which is difficult and complicated to execute,so scientific safety preventive measures should be adopted.
下气化是在多变的自然环境中进行的,操作复杂,难度较大,因此,必须采取科的安全措施。
Underground coal gasification is implemented under changefully natural environment which is difficult and complicated to execute,so scientific safety preventive measures should be adopted.
下气化是在多变的自然环境中进行的,操作复杂,难度较大,因此,必须采取科的安全措施。
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