还原极

Absolute tonal neutrality, outstanding dynamics and a so far unknown level of resolution are trademarks of our amplifiers, complemented by an explosively fast and uncoloured bass and high power triode performance.

绝对忠实的音乐还原，卓越的动力性能，久负盛名的高水准音场解像度，是我们不可或缺的元素，整机装备在极速反应、不添加任何色元素、功率储备充足的胆管上。

New metalized films were obtained by the reduction of ABS/metal salt chelate films with NaBH_4 aqueous solution.

此时薄膜极易剥落，然后将薄膜裁成3cm×1cm的试样，在一定浓度NaBH_4水溶液中还原一段时间后，即制得表面金属化ABS导电薄膜。

There were significant positive correlations between azotobacteria, nitrifying bacteria and urease activity in grafted eggplants.

嫁接茄的固氮菌、硝化细菌和脲酶与其叶片硝酸还原酶活性均呈显著或极显著正相关。

When used in superabrasive grits synthesizing, especially in the case of cubic boron nitride, the consumption of anvils can be decreased effectively; and the quality and yield of CBN can he improved.

在超硬材料合成中，尤其是立方氮化硼合成中，能有效降低锤耗，同时可提高立方氮化硼的合成品质及产量；超硬材料表面镀钛及钛合金后，能实现镀层和结合剂的冶金结合，工具寿命提高30%以上；钛对许多氧化物质和还原物质具有极好的耐腐蚀性，适用于人造金刚石的批量电解提纯工序。

We developed a new method for the synthesis of cycl[3,2,2]azines.Using oxidant promoted 1,3-dipolar cycloaddition reaction, 3,5-dicarbonyl-indolizines were prepared. By treating with low-valenttitanium, cycl[3,2,2]azines were obtained in high yields.

我们通过l，3—偶极加成反应合成了多种3，5-二羰基中氮茚，然后在低价钛试剂作用下还原偶联，以较高收率得到各种取代Cycl[3，2，2]azine，开发了一种全新的Cycl[3，2，2]azine合成法。

While Anhui Bayi Chemical Industry Group Co., Ltd. possesses the only production device of para-aminophenol by hydrogenation with independent intellectual property. Its product is with high quality and doesn't contain metal ion basically. The high quality paracetamol produced from it can be made directly into preparation products with high additional values, which has high competitive capacity and will definitely eliminate the paracetamol produced from para-aminophenol by the reduction of ferrous powder. The market prospect is wide.

而安徽八一化工集团有限公司拥有国内唯一的具有自主知识产权的加氢法对氨基苯酚生产装置，其产品质量好，基本不含金属离子，用其生产高品质扑热息痛可直接制成高附加值的制剂产品，因此极具竞争力，必将淘汰由铁粉还原法对氨基苯酚生产的扑热息痛，具有广阔的市场前景。

The effects of pH value, temperature, light, metal ions and additives on the stability of red pigments from waxberry were studied. The results showed that the pigments were very sensible to acidity and alkalinity. and had a poor thermal stability, and oxidants, reductants and the preservative obviously degraded the tone of pigment.

研究了pH值、温度、光照、金属离子和添加剂等对杨梅鲜汁中红色素稳定性的影响，结果表明：杨梅果汁中的红色素对酸碱度极其敏感，热稳定性差，耐氧化和还原性极差，防腐剂的消色作用较大。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。