Based on the Mohr-Coulomb theory, safety factors was deduced and used to ensure the reasonable parallel tunnel distance and judge the stability of surrounding rock effectively.
根据莫尔—库仑强度理论推导了关于确定并行隧道合理间距的安全系数s。
2
Work hard at understanding the key factor(s) motivating the market(s) you are trading.
交易时,努力去理解那些推动市场的关键因素。
3
In the past 20 years, U. S. exports to China have increased by a factor of 12; while U. S. imports from China have increased almost 30-fold.