A reference material for calibrating and verifying the calorimeter of propellant explosion heat is composed of nitrocellulose(NC),nitroglycerine(NG),centralite and vaseline.
采用硝化棉、硝化甘油、中
剂和凡士林为火药爆热热量计
用
质的组成成分,通过生产工艺优化制备出该质。
A reference material for calibrating and verifying the calorimeter of propellant explosion heat is composed of nitrocellulose(NC),nitroglycerine(NG),centralite and vaseline.
采用硝化棉、硝化甘油、中剂和凡士林为火药爆热热量计用质的组成成分,通过生产工艺优化制备出该质。
ABSTRACT Objective： To establish a method for determining the content of josamycin by HPLC and compare it with the microbial assay.
摘 要 目的：建立HPLC法测交沙霉
含量的方法并与微生法结果相比较。
A system of verifying anemoscope in tobacco specific smoking machine was designal.The theory and component parts of this system was introduced and the method of velocity at a fixed point was modified.
本文简述了烟草专用吸烟机风速仪的
置———多普勒激光流速测速系统的组成及工作原理,介绍了位点风速的测量修正方法。
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