Calculation methods of crackspread length are investigated by means of stress theory and brittle fracture theory.
本文从强度理论和脆断理论两方面对此情况下裂纹传播长度的计算方法进行探讨。
2
The 3-2-1 crackspread compares the acquisition cost of three barrels of crude with the selling price of two barrels of gasoline and one barrel of diesel.
1裂解价差的比较对象是，购买三桶原油的成本与两桶汽油和一桶柴油售价之差。
3
But now there has spread a crack in your hull and your hold is heavy. Now is the time for you to end your voyage, to be rocked into sleep by the lapping of the water by the beach.