“standard sieve”的概念、定义、翻译、参考文献-科学参考

单词	standard sieve
释义	standard sieve Encyclopedia 工学矿石粒度释 standard sieve标准筛筛孔尺寸有一定比例、筛孔大小和筛丝直径均按照标准制造的一组筛子。是筛分分析的工具。
随便看	direction of the selected titles direction of twist of yarn direction parameter direction ratio direction relation direction sign direction vector directive Directive 2001/29/EC of the European Parliament and of the Council of 22 May 2001 on the Harmonization of Certain Aspects of Copyright and Related Rights in the Information Society directive gain directive indoctrinate Directive on Privacy and Electronic Communications Directive on the Legal Protection of Databases Directive on the Protection of Individuals with Regard to the Processing of Personal Data and on the Free Movement of Such Data directive probability method Directives on the Promotion of Putonghua of the State Council directivity directivity and gain of antenna directivity factor directivity function directivity function of microphone directivity index directivity index of microphone directivity pattern direct join

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