The effect of the local hard zone (LHZ) distributed in the coarse grained HAZ (CGHAZ) has been analyzed by 2-dimensional FEM on a mechanical model of the weld CGHAZ.
采用二维有限元数值方法分析了焊接热影响区粗晶区（CGHAZ）中局部硬化区（LHZ）的作用。
For CH joint, when the initial crack is located in hard zone, the closer the initial crack is to the hard soft interface, the slower the fatigue crack growth rate is.
起始裂纹在硬区的软对硬力学性能非对称焊接接头，起始裂纹越靠近软区，疲劳裂纹扩展速率越慢；
In a flood zone people and flooded villages are generally hard to reach, except slowly or by boat.
在洪水区，一般很难接触到人和淹没的村庄，除非缓慢地乘船前往。
It is still hard to imagine a euro-zone member defaulting.
欧元区成员国违约仍然是很难想象的一件事。
It is hard to change because of the comfort zone.
因为安乐窝的存在，它是很难改变。
Those outside the euro zone are trying hard to meet its deficit targets, limiting any scope for fiscal policy.
那些欧元区外的国家正在很努力的尝试去实现他们的赤字目标，减少任何财政政策影响的的范围。
Still, the ECB estimates the crisis won't be as hard on euro-zone banks as the IMF has predicted.
不过，欧洲央行估计，危机对欧元区银行的冲击不会像IMF预测的那样严重。
It is easy to imagine a similar kind of hard bail-out, should a euro-zone country ever run short of cash.
不难想象一个同样困难的救援，欧元区的国家甚至耗尽了现金。
Well, sometimes awful-it's really hard. But sometimes I get into this zone... it's like my mind disappears, and I can fly.
有时候很糟糕，那的确很难学。但是有时候当我进入这个方面…就好像我的思维消失了，我能飞。
Scientists know what causes the dead zone — too much nitrogen, but the solution might be hard to accept.
科学家知道导致死水区是因为含氮量太高，但解决方案可能难以被接受。
The design and fabrication of high aspect-ratio hard X-ray zone plates by X-ray lithography are studied.
对利用X射线光刻制作大高宽比硬x射线波带片的设计和制作工艺进行了研究。
Jiaxing area belongs to representative lacustrine plain zone. Its Quaternary period stratum has several evident sediment cycles "soft to hard".
嘉兴地区为典型的湖积平原，第四系地层具有多个明显“软-硬”交替的沉积旋回。
The trigger zone is hard to customize with simple lenses.
使用简单的镜片，很难定制出触发器区域。
Not so long ago it might have been hard to find many executives who thought the euro zone would fracture.
不久之前，可能很少有高级经理人会认为欧元区会出问题。
The reason many of us don't improve much despite our hard work is that we tend to spend almost all of our time in the performance zone.
我们很多人非常努力但却没有进步的原因就是，我们往往把我们的时间放在表现区。这阻碍了我们的成长。
While the yuan is gradually gaining confidence, it is hard to back away from the comfort zone of the U. S. dollar.
在人民币获得信心的同时，它与美元的汇率将很难再回到合理区域。
The nine-zone graph theory is widely recognized in reactive power optimization but hard to deal with three-coil transformers.
九域图原理是电压无功控制的成熟理论，但在处理三绕组变压器时有一定的难度。
Zone 2 (Z2) – sometimes called no man's land, this zone is just above 80% HRmax but is not hard enough to be a real quality session (>85% HRmax).
区间2（Z2）-有时称为“无主之地”。该区域刚好超过80%最大心率，但又不足以达到真正的高强度区（大于85%最大心率）。
Nevertheless, it is very hard to ensure backfilling quality in after pouring zone during the period of construction.
实际施工中，后浇带回填质量很难保证，因此，尽量减少后浇带的留置对结构是有利的。
Nevertheless, it is very hard to ensure backfilling quality in after pouring zone during the period of construction.
实际施工中，后浇带回填质量很难保证，因此，尽量减少后浇带的留置对结构是有利的。
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