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5 How to Conduct an Experiment in the Field …
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Ground
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(a)
(b)
Fig. 5.2 A tent-style removable house designed for the field study of the gravity erosion on the
Loess Plateau. a A lengthened column; b The construction site. Keys: 1. Base; 2. Positioning bolt;
3. Concrete column; 4. Connecting holes; 5. Set bolt; 6. Wooden wedge; 7. Tent pole