“试样准备”的概念、定义、翻译、参考文献-科学参考

单词	试样准备
释义	试样准备 Encyclopedia 理学【试剂和试样】释 methods of sampling试样准备包括取样和试样制备两步。前者是指从大量物料（分析对象的总体）中取得其中有代表性的一小部分，即在误差允许范围内，这一小部分试样应能代表大量物料的组成。后者是把按一定程序取得的仍然颗粒较大的试样，经过破碎、缩分、研磨、过筛等步骤，制备成适合于作分析用的试样。
随便看	Logistics Park Chicago，USA logistics park of express service logistics park planning logistics performance index logistic spiral logistics planning logistics property logistics public information platform logistics scheduling logistics service logistics service building of society logistics strategy planning logistics strength logistics support analysis program for aircraft equipment logistics system logistics system engineering Logistics system simulation logistics tracking Logistics unit management technology logistics visibility and transparency logistic system logistic trend logistic viewpoint logit logit model

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。