And what policy would supply any useful options at all for Somalia, a wasteland that appears to be impervious to all forms of outside meddling, benevolent or malign?
什么样的政策，能为索马里这个显示出抵制外界任何形式的干预，慈善和毁谤的废墟，提供有用的选择呢？
And while exact Numbers will undoubtedly turn out to be different, the underlying trends are relatively impervious to all but the most severe or disruptive shocks.
虽然最终的确切数字无疑会有差异，但基本趋势是不受任何影响的，除非发生最严重或破坏性的冲击。
All surfaces inside the building should be of impervious material to permit thorough washing.
建筑里所有的表面都应当用不透水的材料这样可以彻底清洗。
The leakage still can not be prevented by the spillway reinforcing treatment and grouting impervious for many years, the damage speed of the spillway concrete still fails to slow down.
多年来对溢流坝不断加固治理以及灌浆防渗，但是渗漏仍不能遏止，溢流坝混凝土的破坏速度仍未能减缓。
While the formal rules can be changed overnight, the informal constraints are much more impervious to change and impose a powerful drag on abrupt change.
尽管正式规则能突然改变，而非正式约束却远不受变化的干扰，并能强有力的延缓突然的变化。
For a full well excavated down to the impervious stratum, the penetrating pattern could be considered as a model of canal network according to the seepage laws of vertical flow.
完整井情况下的锥探灌浆，其渗入型式可按单向渠道网络模型下的竖向渗流形式来考虑。
For a full well excavated down to the impervious stratum, the penetrating pattern could be considered as a model of canal network according to the seepage laws of vertical flow.
完整井情况下的锥探灌浆，其渗入型式可按单向渠道网络模型下的竖向渗流形式来考虑。
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