政府化验所化验师协会: government laboratory chemists association
己: Ⅰ代词(自己) oneself; one's own; personal 短语和例子坚持己见 stand to one's assert; hold on to one's own views; 舍己为公 make personal sacrifices for the public good; 引为己任 regard as one's (own) duty; 各抒己见。
分析用粉末试样的制备: spices and condiments - preperation of a ground sample for analysis
