Failure accident are liable to occur in the deep well and hard formation. Fatigue faliure is the main faliure form.
特别是在深井作业中及硬地层,容易发生失效事故,其中疲劳失效是主要的失效形式。
Failure accident are liable to occur in the deep well and hard formation. Fatigue faliure is the main faliure form.
特别是在深井作业中及硬地层,容易发生失效事故,其中疲劳失效是主要的失效形式。
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