这是由于弱间层的存在将出现裂纹偏转现象，吸收大量的断裂功，从而大幅度提高了裂纹的扩展容限，使断裂韧性有较大增长。
The crack will deflect because the weak layer exits, which will absorb more amounts of fracture work and improve the crack tolerance greatly, therefore the fracture toughness increases remarkably.
其中重卡、轻卡和微卡均有不同程度的正增长，唯有中卡市场出现较大幅度负增长14.34%。
The heavy truck, small truck and micro truck have all contributed to the growth. But the only minus rate appeared in medium truck market with 14.34% in decrease.
供热管网目前已有稳定的用户，随着未来新管网建设不断增加、老管网不断改造扩建，供热收益会有较大幅度增长。
The heat supply network currently has its stable users, and as new networks are built and old ones are constantly renovated and extended, income from heat supply will increase greatly.
表12 - 4中的趋势指数显示，表中的每个项目在过去的3年里都在稳步增长而1995年则有较大幅度的下降。
The trend index in Exhibit 12-4 shows that each item has increased steadily during the last three years, the number in 1995 decreased dramatically.
表12 - 4中的趋势指数显示，表中的每个项目在过去的3年里都在稳步增长而1995年则有较大幅度的下降。
The trend index in Exhibit 12-4 shows that each item has increased steadily during the last three years, the number in 1995 decreased dramatically.
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