The basic ingredients in glass, including silica sand and soda ash, are found almost everywhere.
玻璃的基本原料,包括硅砂和纯碱,几乎可以在任何地方找到。
The processes of sand casting are discussed in this section, including patterns, sprues and runners, design considerations, and casting allowance.
本节讨论砂型铸造工艺,包括型模、浇注口、浇道、设计考虑因素及铸造余量。
The undisturbed soil samples, including clay, silty clay, silt, sand, muck and mucky soil, come from about ten different legions in China.
试验土类包括粘土、粉质粘土、粉土、砂土、淤泥和淤泥质土,土样来自国内十余个不同地区。
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