HCHO

Simple examples of aldehydes are methanal ( formalaehyde , HCHO ) and ethanal ( acetaldehyde , CH 3 CHO ).

简单的醛有甲醛(HCHO ) 和乙醛 ( CH3CHO ).

Their combination with tanning agents Cr, Al, HCHO and vegetable tannin extract was also studied.

同时研究了它们与铬 、 铝 、 甲醛和栲胶等鞣剂的结合稳定性及其产生的助鞣作用.

Formaldehyde ( HCHO) is one of the main indoor air pollutants.

甲醛（HCHO）是室内空气的主要化学污染物之一。

The results indicate that HCHO has a strong influence on the anodic behavior of both p-Si and n-Si electrodes in alkaline solutions. A reduction current of HCHO on an n-Si ( 100) electrode was observed in the dark due to the conduction band electron.

实验结果表明，甲醛不仅影响p和n型半导体电极在碱性溶液中的阳极氧化峰电流，而且在负电位区能在Si（100）电极上发生还原。

Determination of hso_3~-by means of a clock reaction series hcho-hso_3~& so_3~ ( 2-) with sudden change

时钟反应系HCHO-HSO3~&SO3~（2-）的pH突跃法测定HSO3~-盐的含量

We also simulated the daily changes of PAN, OH and HCHO.

文章还模拟了PAN，OH自由基和HCHO这三种重要物种的日变化规律。

We consider all the possible reaction channels in the reaction of HCHO with OH for the first time.

本文在前人工作的基础之上对甲醛和羟基的反应机理做了进一步的理论研究。

The paper calculates the concentration of HCHO respectively in two kinds of airflows, analyzes the distributions of the concentration field, non-dimensions concentration field, and air change efficiency, and compares the results of calculation with others using CFD method.

利用CFD软件模拟计算了两种气流组织方式下室内甲醛的浓度场，分析了室内浓度场、无因次浓度、空气交换效率的分布规律，并与传统计算方法的结果进行了比较。

In Situ Raman Spectroscopic Study on the Oxidation of HCHO on a Roughened Platinum Electrode

粗糙铂电极上甲醛电氧化行为及其现场表面拉曼光谱研究

The factors that effected the water reducibility and stability of the sulfonated melamine-HCHO resins are discussed.

详细讨论了影响磺化三聚氰胺甲醛树脂减水率和稳定性的各个因素.

The result shows that these air cleaners can absorb toxic gas such as SO2, NOx, HCHO to certain extent.

结果表明，该四种空气净化器对SO2、NOx、HCHO等有害气体均有一定的吸附效果。

Investigation of trends and risk with indoor air pollution by VOCs and HCHO

挥发性有机化学物质和甲醛的室内空气污染动态调查与危险性研究