酸性

Effect of charge and molecular on flocculent performance of Polyacrylamide and cationic PolyvinylformamideC...

研究结果表明：(1)pH值对废水的色度、浊度以及电荷性质有很大的影响，从而对絮凝剂的絮凝性能产生影响；(2)C-PNVF在酸性条件下，电荷密度越低絮凝效果越好：中、碱性条件下，则相反；(3)分子量对各种电荷性质的PAM的絮凝性能的影响规律各不相同。

Fluoride to prevent cavities there are several ways: to hydroxyapatite into fluorapatite difficult to dissolve and reduce enamel in acid in the soluble; to a direct impact on dental plaque and reducing plaque organisms secrete acid capacity; accelerated by acidic substances are due to decalcification of the tooth enamel erosion and mineral parts of recharging it.

氟化物以防止蛀牙，有几种方法：对羟基磷灰石成难溶于和减少酸，可溶性搪瓷；在对牙菌斑产生直接影响，减少牙菌斑生物分泌酸能力；的酸性物质加速是由于脱钙的牙齿釉质侵蚀，它的充电矿产部分。

The direct flotation tests of hematite from real samples of high intensity magnetic separation concentrate in weak acidic medium with fluosilicate or polymer silicic acid colloid as the depressor of iron containing silicate gangue natrosiderite and with anionic fatty acid sulfonate as the collector have all achieved good separation results.

针对包钢强磁精矿实际矿石样，分别以氟硅酸盐、聚合硅酸胶体作为含铁硅酸盐脉石霓石的选择性抑制剂，以阴离子脂肪酸磺酸盐为捕收剂，在弱酸性条件下进行赤铁矿的直接浮选，均取得了较好的分选指标。

The Buqingshan — Huashxia superslice is complex, including Middle Proterozoic diorite-facies Kuhai melange slice, ophiolite slice of different times, Early Permian — Early Triassic flysch wedge, basic-acid volcanic slice and carbonate slice and Late Triassic — Early Jurassic Yangqu Fm. terrestrial clastic slice.

布青山一花石峡超岩片组成较复杂，包括中元古界角闪岩相变质的苦海杂岩岩片、不同时代蛇绿岩岩片、早二叠世—早三叠世复理石楔岩片、中酸性火山岩岩片和碳酸盐岩片以及早侏罗世羊曲组的陆相碎屑岩岩片。

To resolve these problems, this paper deals with the technology of foamed acidizing. The anti-salt and anti-acid foamer DY-1+SJ-8 and foam stabilizer KMS-2 were selected, then their performance under different foamer concentration condition was evaluated and the proper concentration was determined. Thereafter the diversion experiment of foamed acid through the parallel core was conducted.

针对上述问题，对泡沫酸酸化技术进行了研究：通过室内实验筛选出了耐酸耐盐的起泡剂DY-1+SJ-8和稳泡剂KMS-2，并对不同起泡剂浓度下的泡沫酸性能进行了评价，确定了其使用浓度；在此基础上进行了泡沫的岩心分流实验，实验结果表明泡沫泡体可以增加低渗透岩心的分流量，减少高渗岩心的分流量，使泡沫流体在不同渗透率岩心内均匀推进。

Strongly acidic food: egg yolk, cheese, cake make with white sugar or persimmon, mullet fish roe

强酸性食品：蛋黄、乳酪、白糖做的西点或柿子、乌鱼子、柴鱼等。

Strongly acidic food: egg yolk, cheese, cake make with white sugar or

1强酸性食品：蛋黄、乳酪、白糖做的西点或柿子、乌鱼子、柴鱼等。

Strongly acidic food: egg yolk, cheese, cake make with white sugar or persimmon

1强酸性食品：蛋黄、乳酪、白糖做的西点或柿子、乌鱼子、柴鱼等。

Strongly acidic food: egg yolk, cheese, cake make with

强酸性食品：蛋黄、乳酪、白糖做的西点或柿子、乌鱼子、柴鱼等。

Strongly acidic food: egg yolk, cheese, cake baked with white sugar or

1强酸性食品：蛋黄、乳酪、白糖做的西点或柿子、乌鱼子、柴鱼等。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。