词语大全 na2edta中文翻譯

Posted 2022-08-22 文

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词语大全 na2edta中文翻譯

The na2edta volumetric method for the determination of lead content
容量法測定鉛量

Copper alloys . determination of iron content . na2edta titrimetric method
銅合金.鐵含量的測定.二乙二胺四乙酸鈉滴定法

Effects of na2edta and na4edta \' s concentration on dissolving caso4 were studied
研究了反應濃度對na _ 4edta和na _ 2edta溶解硫酸鈣的影響。

Methods for chemical analysis of lead concentrates - the na2 edta volumetric method for the determination of lead content
鉛精礦化學分析方法na2edta容量法測定鉛量

Methods for chemical analysis of lead concentrates - the na2 edta volumetric method for the determination of zinc content
鉛精礦化學分析方法na2edta容量法測定鋅量

For na4edta , and the effect of ionic strength on the chelating properties of na4edta and na2edta for caso4 was reviewed
考察了含鹽量對na _ 4edta和na _ 2edta溶解硫酸鈣性能的影響。

Methods for chemical analysis of zinc oxide produced by direct process - determination of zinc oxide content - na2edta titration method
直接法氧化鋅化學分析方法na2edta滴定法測定氧化鋅量

In the process of na2edta cleaning the fouled membrane , concentration and time had high remarkable effects , ph and pressure had remarkable effects but temperature had not obvious effect
在nazedta對污染膜的清洗過程中，濃度，時間對清洗效果影響是高度顯著的， ph和壓力對清洗效果影響顯著，而溫度則無明顯影響。

At last , on the basis of above experiments , the five - factor - three - level orthogonal experiments on the relative flux recovery ratio after na2edta and na4edta cleaning pvdf microfiltration membrane that was fouled by caso4 were done
最后，在前面實驗的基礎上，作出na _ 4edta和na _ 2edta對硫酸鈣垢污染的pvdf微濾膜清洗后，相對通量恢復率的五因素三水平正交實驗。

The high - efficiency cleaning agent and optimum conditions were chosen and it has some guiding significance on practice . the main tasks include : by the contrastive experiments of sodium tripolyhosphate , sodium hexametaphosphate , na2edta and na4edta dissolving caso4 , na2edta and n ^ edta were chosen as cleaning agents in this experiment
主要包括：通過對三聚磷酸鈉、六偏磷酸鈉、乙二胺四乙酸二鈉、乙二胺四乙酸四鈉四種螯合劑對硫酸鈣溶解性對比實驗，最終選擇乙二胺四乙酸二鈉和乙二酸四乙酸四鈉作為本實驗清洗劑。

Integrating the dissolving experiments of na2edta and na4edta and the orthogonal experiments , we can conclude that the dissolving property of na ^ edta is relatively more stable and higher than that of na2edta in this experiment . and , the conclusion can be made that for the caso4 scale in membrane na4edta has the best cleaning effect and the optimum condition is ph = 11 , operating pressure = 0 . 1mpa and concentration = 4 % wt
在綜合考慮乙二胺四乙酸二鈉和乙二胺四乙酸四鈉對硫酸鈣的溶解性實驗及正交實驗，和最后對污染膜清洗的正交實驗可以看出，盡管最優工程選擇中nazedta清洗后膜的相對恢復率略高于na4ed飛’ a ，但其要求條件相對苛刻，從溶解性實驗也可看出， na4edrla對硫酸鈣的溶解相對穩定，溶解率高。