论文利用二次正交回归的设计方法对无氟保护渣的成分与熔点的关系进行了研究。
In this paper, the relationship between component and melting point of fluorine free mould fluxes was studied by means of regressive orthogonal design.
城市生活垃圾成分复杂，并且焚烧过程中会产生重金属的二次污染，是城市垃圾处理中最难解决的问题。
Because of the complex composition in MSW, secondary pollution of heavy metals in the process of MSW incineration is the most difficult problem to be solved in MSW disposal.
好氧生物处理会产生大量的、成分复杂的剩余污泥，如果处置不当容易造成二次污染。
In aerobic wastewater treatment system, large amount of complicated ingredient sludge are formed. If not being disposed properly, the sludge can cause secondary pollution to environment.
叙述了热处理对牛乳中各种成分的影响，并简要对比了超高温灭菌乳、巴氏杀菌乳及二次灭菌乳的差别。
The influence of heat treatment on milk components was discussed, and the differences of UHT milk, pasteurized milk and retorting milk were comparatively evaluated from nutrition point of view.
此外，两种不同表面状态下的化学成分以及氧化层都通过二次离子质谱测定法进行了分析。
Additionally, chemical composition and thickness of oxide layers, occurring in both studied cases, were analyzed by secondary ion mass spectrometry.
来自污水处理厂的污泥产量大，成分复杂，含有多种病菌，处置不当势必造成二次污染。
Sewage treatment plants yield lots of sewage sludge. The sludge has complex composition, containing a variety of bacteria, and then the improper disposal is bound to cause secondary pollution.
在两个频率成分靠的较近，但产生的模态耦合不严重时，通过二次校正可以降低耦合影响，提高估计精度。
When one frequency is close to the others and the coupling is not very severe, we can enhance the precision by the second correction.
实验结果表明，采用煅烧二次酸浸工艺能按照上述要求有效地调整该高岭土的成分。
Laboratory test results show that the use of a calcining and double step hydrochloride acid leaching technique can satisfyingly do it.
本发明将酸洗液中有价成分完全利用，无二次污染，环保，降本，终产品纯度高。
The invention makes full use of valuable ingredient, with no secondary pollution, secondary pollution, low cost and high-purity material finished product.
污泥型煤无二次污染，其气化成分符合合成氨原料气的要求。
Results showed that no pollution took place in these processes, and the gas generated can meet the demand of ammonia synthesis.
污泥型煤无二次污染，其气化成分符合合成氨原料气的要求。
Results showed that no pollution took place in these processes, and the gas generated can meet the demand of ammonia synthesis.
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