Base on the survey of internal and external research about COD on-line automatic monitor, COD on-line automatic monitor with Coulomb method was designed, studied, and made.
在调研国内外COD自动在线监视仪的基础上，设计、开发并研制了以库仑法为原理的自动在线监视仪。
2
The text introduce a handy method during subgrade or pavement base construct named" one line" method, and showed its peculiarity and applicable performance.
介绍了在路基、面基层施工中采用的一种简便的施工方法“一线控制施工法”及它的特点和应用性。
3
Penetration performance in surface layer of concrete target was analyzed by stress wave damage theory, calculating methodbase on "simplified equivalent resistance line" was presented.