1) sleek
砂坑
2) gravel pit
采砂坑
1.
The analysis of the influence of the degan gravel pits on riverbed development;
长江上游德感坝采砂坑对河床演变影响分析
3) eastern sand pit
东砂坑
1.
The paper is through synthetic analysis on the ambient geological environment of eastern sand pit in Bayin town of Urad Houqi,and put forward the plan and practice on the geological environmental protection.
本文通过对乌拉特后旗巴音镇东砂坑地质环境现状进行因地制宜的综合性分析,提出了相应的地质环境治理规划方案与工程实践措施。
补充资料：坑坑坎坎
1.坑坑洼洼，凹凸不平。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。