film marker是什么意思

用法例句

Study on sign gas for predicting coal spontaneous combustion in Wuda mine area;

乌达矿区煤自燃预测标志气体研究

With the departure point of the sensitivity of each sign gas for predicting coal spontaneous combustion and operatingness,based on the measurement experiment of oxidation gas products in the process of temperature-up,researched the change curves which showed oxidation gas products of the coal samples of Yingzi coal of Qingshan Mine change with coal temperature.

以提高各标志气体对煤自然发火预报的灵敏性和可操作性为出发点,以煤升温氧化气体产物的测定实验为基础,对青山矿硬子槽各煤样产生气体量随温度的变化进行了研究。

Analysis on infrared spectrum study of significant gas produced by coal spontaneous combustion;

煤炭自燃生成标志气体的红外光谱分析

The rules for the significant gas produced by coal samples and the rules for CO consistency changing by temperature were obtained at different temperature.

确定了煤样在不同温度下生成标志气体的规律及CO气体浓度随温度变化的规律,对预测预报煤的自然发火具有重要的理论和实际意义。