The Major natural sources of atmospheric methane include enteric fermentation in ruminants and some insects, and the anaerobic decomposition of organic matter in waterlogged soils.

The order of the anaerobic decomposition of the sodium dithionite in the alkaline solution is 1.5 order.

在碱性溶液中，连二亚硫酸钠的分解反应级数为1.5级。

These processes are controlled by anaerobic decomposition of soil organic matter and respiration and excretion of rice roots, relating to soil proper-ties as well.

其转化主要受土壤有机质嫌气分解和水稻根系呼吸及分泌作用的制约，并与土壤基本性质密切相关。

The anaerobic decomposition rate of the sodium dithionite in alkaline aqueous solution is reported here.

本文研究了连二亚硫酸钠在碱性溶液中绝氧条件下的分解率。

The mechanism of the palladium complex 40 catalyzed Suzuki cross-coupling reaction was discussed. The cause of decomposition of catalyst and appearance of palladium black were studied.

探讨了cis-Pd（Ph2PCH2COO）2（40）催化Suzuki偶联反应机理及催化剂分解析出钯黑的原因。

The Present Situation and Development of Methanol Decomposition Catalyst

甲醇裂解催化剂的现状及发展

Hydrogen production from methane decomposition and catalyst regeneration by air in a fluidized bed reactor

流化床中甲烷裂解制氢与催化剂再生过程研究

Preparation and properties of binary metal oxide ozone decomposition catalyst

臭氧分解催化剂的制备及性能研究

The profiles of solids and ozone concentrations are measured in a downer reactor with a diameter of 0.09 m and a height of 8.2 m while ozone decomposition catalyst is circulated in the bed.

制备了臭氧分解催化剂，并以它为循环物料在内径0.09m、高度8.2m的下行床中测定了颗粒浓度分布和臭氧浓度分布。

A New Technological Study on Preparation of Barium Nitrate by Double Decomposition

复分解法制硝酸钡新工艺研究

Two main section-evaporation and cooling crystallization was reconstructed in Double Decomposition Reaction Produce KNO3, and production of reconstruction anteroposterior was contrasted.

对复分解法生产硝酸钾工艺中的两个主要工段：蒸发、冷却结晶进行改造，并对改造前后的生产情况进行了对比。

Study on preparation of high purity magnesium hydroxide by double decomposition method

复分解法制备高纯氢氧化镁的研究

Study on the Production Technology of Potassium Nitrate with Double Decomposition Reaction

复分解法生产硝酸钾工艺研究

Analysis of production technology of potassium sulfate by double decomposition

用复分解法生产硫酸钾工艺分析

Leaching Process on Chemical Decomposition of LiCoO_2

LiCoO2的化学分解浸取过程

The physical and chemical decomposition rates were 34.18%, 38.18% and 19.85%;

物理化学降解率分别为34.18%，38.18%和19.85%。

Microwave electromagnetic characterization of carbonyl iron fibre prepared by magnetic-field-induced chemical decomposition

羰基铁纤维的磁场诱导制备及其微波电磁特性分析

Application of pulse combustion technology covers heating boiler, chemical decomposition and synthesis, calcinations of lime and cement.

脉动燃烧技术的应用范围涉及锅炉采暖、化工分解与合成、石灰水泥煅烧等工业生产。

Chemical decomposition characteristics of hardened cement paste subjected to high temperature of fire

水泥生产二氧化碳排放分析和定量化探讨火灾高温下硬化水泥浆的化学分解特征

Study on New Process of Electrolytic Decomposition for Waste Emulsion

废乳液电解破乳新工艺的研究

The paper describes a new process of electrolytic decomposition and electrical concreting waste emulsion for by DC under certain temperature.

研究了在一定温度条件下，利用直流电源对轧制铝板中用过的废乳液进行电解破乳和电混凝的新工艺。