The engineering properties and durability of sand with shell could satisfy the requirements of foundation based on the research results.
研究结果表明贝壳砂的工程特性与耐久性满足工程对地基的要求，为贝壳砂的工程应用提供了技术依据。
The aquatic, wormlike larva of the caddis fly, enclosed in a cylindrical case covered with grains of sand, fragments of shell, and other debris.
水生的，石蚕蛾的蠕虫状幼虫，包在被沙粒、卵壳碎片以及其它碎片盖住的柱形盒内。
RESULTS:Processing tortoise shell with vingar is better than that of heating with sand and boiling with vinegar, which was recorded in pharmacopeia of china, 1995.
龟甲炮制品研极细粉入药比1995年版《中国药典》的用时捣碎为优。
With its factory in Foundry: low pressure casting, metal-type gravity casting, shell coated sand casting and sand casting;
本厂在铸造方面具备：低压铸造、金属型重力铸造、覆膜砂壳型铸造和砂型铸造；
With its factory in Foundry: low pressure casting, metal-type gravity casting, shell coated sand casting and sand casting;
本厂在铸造方面具备：低压铸造、金属型重力铸造、覆膜砂壳型铸造和砂型铸造；
应用推荐