1. The germination tests take sand bed as the best.

2. Germination was faster in paper bed than in sand bed.

3. The thicker the sand bed, the non-uniform sand composition, then the larger armouring effect would be and the larger this critical size is correspondingly.

4. The thin sand bed is composed of tight mixed type cementation facies and untight mixed type cementation facies.

5. Compared with paper bed, sand bed could increase germination percentage by reducing seed mildew and roting.http://

6. In order to remove mucosa, sand bed could be used as germination bed.

7. The two-phase flows over the sand bed and in the pipe are simulated, the different distributions of volumetric fraction are found and analyzed.

8. The construction of the sand bed used as mould, its preparing and drying were described.

9. The scattered single barchan dunes on the non sand bed possess movability and form unstability except the high large crescent sand mountain.

10. The water surface level, velocity field and sediment concentration field of gravel sand bed and sand bed reach on Jianjiang river were refined simulated.

11. This paper presents an experiment for measuring the acoustic energy loss in the sand bed in water tank.

12. A layer of microorganisms at the top of the sand bed consumes biological and other organic contaminants, while the sand below removes contaminants that cause cloudiness and odor.

13. This method reaped quite good geological effect in the seismic interpretation of thin sand bed in Pucheng area.

14. There exists extremely notable linear ration between the thickness of dry sand bed and evaporating capacity.

15. Some engineers suggest that this period be extended to allow a sand bed to rest for a month after the sludge cake has been removed.

16. The quantitative relation among the threshold wind velocity of sand movement, sand diameter and the agglutinate stress of sand bed is obtained with the mentioned dimensionless variables.

17. According to this principle, we made a quantitative interpretation on thickness of oil-bearing sand bed in bottom member of Dongying formation in south Bohai sea.