hardness limit是什么意思

网络释义

用法例句

The limited carbonate hardness method and its use in the testing and ev aluating of scale inhibitors are introduced, and the inhibition efficiencies of scale inhibitors, such as PAPEMP,HPMA(solvent is water), HPMA(solvent is oil), T-225, HEDP, PBTCA, HPAA, are evaluated by it.

着重介绍了极限碳酸盐硬度法及其在阻垢剂评价筛选中的应用,并对PAPEMP,HPMA(水溶出),HPMA(油溶出),T-225,HEDP,PBTCA,HPAA等阻垢剂的阻垢性能进行了评定。

The inhibition pefformances of five fouling inhibitors including HEDP,PBTCA,ATMP,T-225 and YSW-301 were evaluated by the limited carbonate hardness method.

采用极限碳酸盐硬度法对阻垢剂HEDP,PBTCA,ATMP,YSW-301和T-225进行了阻垢性能评价。

The optimal evaluation temperature of the utmost carbonate hardness measurement instrument is 70 ℃.

开发了一种用于阻垢剂性能评价的新型极限碳酸盐硬度测定仪及评价方法,对5种常用阻垢剂的评价结果和静态容量瓶法及浓缩法评价结果相比性能优劣趋势相同,均为PBTCA>ATMP>HEDP>YSW-301>T-225;极限碳酸盐硬度测定仪的最佳评价温度为70℃;当达到极限碳酸盐硬度时,水样的pH将突降,电导率变化趋于平缓。

The results of the experiment sh ow that the limited carbonate hardness method is simple, quick and effective.

由实验的结果来看,极限碳酸盐硬度法简便、捷、现性好,可信度高。

Study on a new type of utmost carbonate hardness measuring instrument and its evaluation method

一种新型极限碳酸盐硬度测定仪及评价方法研究

Study of Threshold Value of Organic Enrichment of Carbonate Gas Source Rocks;

碳酸盐岩气源岩有机质丰度下限研究

" Determination of CaCo3, SrCo3 in cathode carbonate by atomic absorption spectrophotometry"

GB/T10304.4-1988阴极碳酸盐中碳酸钙、碳酸锶的原子吸收分光光度测定

Test method for particle distribution of cathode carbonates by centrifugation sedimentation

GB/T10305-1988阴极碳酸盐粒度分布的测定离心沉降法

Determination of nitrate in cathode carbonate

GB/T10304.5-1988阴极碳酸盐中硝酸根的测定

Determination of nonsolute for chloric acid in cathode carbonate

GB/T10304.7-1988阴极碳酸盐中盐酸不溶物的测定

Determination of Na in cathode carbonate by atomic absorption spectrophotometry

GB/T10304.6-1988阴极碳酸盐中钠的原子吸收分光光度测定

Determination of ignition losses in cathode carbonate

GB/T10304.12-1988阴极碳酸盐灼烧失重的测定

Determination of Fe in cathode carbonate

GB/T10304.8-1988阴极碳酸盐中铁的测定

General rule for analytical method of cathode carbonate

GB/T10304.1-1988阴极碳酸盐分析方法通则

"Hard water: Water that contains mineral salts of calcium and magnesium, principally as Bicarbonates, chlorides, and sulfates, and sometimes iron."

硬水:含有钙和镁的碳酸氢盐、氯化物和硫酸盐的水,有时也可能含铁。

Determination of BaCo3 in cathode carbonate by dichromate iodimetry

GB/T10304.2-1988阴极碳酸盐中碳酸钡含量的测定重铬酸钾碘量滴定法

Eodiagenesis is characterized by the assemblage of carbonate-analcime-anhydrite, while authigenic kaolinite is found in some strata.

浅埋藏期以碳酸盐～沸石～硬石膏组合为特征。

dipotassium carbonate (neutral carbonate)

碳酸二甲（中性碳酸盐）

The net result is thus a reduction in the concentration of carbonate ions.

氢离子容易和碳酸盐离子结合，形成碳酸氢盐离子，最后导致碳酸盐离子浓度降低。

Determination of heavy metals in cathode carbonate

GB/T10304.11-1988阴极碳酸盐中重金属(以pb计)的测定

Study and Determination of the Ambroxol with Carbon Fiber Electrode Modified by the Bismuth Film;

铋膜修饰碳纤电极测定盐酸氨溴索的研究