1. Main products and Main Industry: quartz sand, quartz sand casting; glazed ceramic quartz sand, sand filters; preservative sand; Floor sand; sandblasting; refractory sand; paint sand; 石英砂；铸造石英砂；陶瓷釉面石英砂；过滤砂；防腐砂；地坪砂；喷砂；耐火材料砂；涂料砂；
2. Main products and Main Industry: quartz sand, quartz sand casting; glazed ceramic quartz sand, sand filters; preservative sand; Floor sand; sandblasting; refractory sand; paint sand; 石英砂；铸造石英砂；陶瓷釉面石英砂；过滤砂；防腐砂；地坪砂；喷砂；耐火材料砂；涂料砂；
3. There are some differences in the distribution of varied physiographical places. Taxa in inner dune are more abundant than those in windward, top and leeward of sand dune. 蓝藻在不同地貌部位分布略有差异，在丘间低地种类最为丰富；
4. They form when plants hold sand in the outer parts of the dune but the center of the dune continues to move. 当生长在沙丘外部的植物把那部分沙石固定下来而沙丘的中心部位继续向前移动时就形成了新月型沙丘。
5. The amplitude contraction of semi-fixed dune increased, but the amplitude contraction of mobile dune reduced. 半固定沙丘面积变幅最大，而流动沙丘面积变幅最小；
网络释义
dene dune sand dune sand hill sandbank sowback 沙丘;
dene dune sand dune sand hill sandbank sowback 沙丘;
dene dune sand dune sand hill sandbank sowback 沙丘;
dene dune sand dune sand hill sandbank sowback 沙丘;
