Now a merely figurative expression, the phrase is based on an actual practice of North American Indians.

这是个形象化的表达，这个俗语是建立在北美印地安人的实际做法上的。

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Through several years exploration and practice, Hangzhou has set up a housing security system with local features based mainly on six types houses, and achieves actual effect.

杭州市经过多年的探索与实践，基本建立起具有本地特色的以“六房并举”为主的住房保障体系，并取得实效。

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Based on the actual construction practice, the mechanism model and construction technique of ejector anchor retaining and protecting for soft foundation pit.

通过施工实例，对软土基抗围护中喷锚网支护的机理模型及施工技术进行探讨，并介绍实际技术处理措施及效果。

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