钾

The antiwear and friction-reducing performances of sodium borate ,potassium borate and lanthanum chloride in water were evaluated on a four-ball friction tester.

结果表明，硼酸钠、硼酸钾和氯化镧可一定程度地提高水的极压、抗磨和减摩性能，硼酸钾性能最优，硼酸盐与氯化镧复合后性能进一步改善。

The conclusion was drawn by the synthesis of molecular sieve: after mixed soluble glass and aluminium sulfate with proper proportion under room temperature, it was stirred stormily to react. And then we mixed with potassium hydroxide solution after filtrating. At last, the molecular sieves of potassium type was synthesized after the mixture reacted in the oven or autoclave for 24 hours. The molecular sieve was remodeled more than twice with ammonium chloride solution that the concentration was 3mol/L and then remodeled twice with the saturated sodium chloride solution. Finally the molecular sieve was changed into the sodium type. It was named W zeolite.

通过对分子筛的合成得到：以泡花碱、硫酸铝为原料，以硅铝比按一定比例于室温下将二者混合，激烈搅拌，抽滤后与氢氧化钾溶液混合放于烘箱或高压釜中高温晶化24小时，晶化后的分子筛为钾型，先后用3mol/L氯化铵溶液和饱和食盐水各对其改型两次以上，最后改为钠型，可制得W型沸石分子筛。

The results indicated that they all had certain effect, but potassium sorbate and sodium diacetate were better than others.

结果表明，山梨酸钾、苯甲酸钠、丙酸钠、丙酸钙和双乙酸钠对湿米粉都有一定的保鲜效果，其中山梨酸钾和双乙酸钠保鲜效果较好。

On the media containing 0.02 and 0.04 g/L potassium sorbate, the contamination rates of explants were 87% and 97% resp. The bacteriostatic effect of 0.02 g/L potassium sorbate was obviously better than that of its other concn.

在含0.02和0.04 g/L山梨酸钾的培养基上外植体的污染率分别为87%和97%。0.02 g/L山梨酸钾的抑菌效果明显好于其他浓度。

This method is fast,accurate,simple and is used to the routine check of the metallic iron in sponge iron with satisfactory result.

介绍了用三氯化铁-重铬酸钾容量法测定海绵铁中金属铁的方法，试样用三氯化铁溶液选择性地使金属铁溶解，过滤分离不溶物，移取部分滤液，用重铬酸钾容量法直接滴定，方法快速准确，操作简便，用于海绵铁中金属铁的日常检测，可获得满意结果。

Progress in research of catalyst deactivation in ethylbenzene dehydrogenation was reviewed.Active phase of the catalyst was briefly analyzed.Five main reasons for the catalyst deactivation were discussed,including coke deposition,loss and redistribution of potassium promoter,change in oxidation state of iron,structural transformation of the catalyst,and the catalyst poisoning.

对乙苯脱氢制苯乙烯催化剂失活的研究进展进行了综述，分析了催化剂的活性相，分别探讨了积碳、钾的流失与重新分布、Fe3+的还原、催化剂物理结构的变化和中毒等5个因素对催化剂失活的影响及其失活机理，其中，钾的流失和Fe3+的还原是造成催化剂失活的重要因素。

Under the superfusion of low potassium Tyrode's solution, EAD were relatively easy to occur in both mouse atrial and ventricular fibers, suggesting the close relation between the potassium currents and the generation of EAD.

我室以往的工作表明：小鼠心肌是研究EAD的理想标本。既使轻微的低钾（3mM 〓）条件也足以诱发小鼠心房肌和心室肌的EAD（尽管二者难易度上存在差别），提示小鼠心肌细胞上的钾电流与EAD的发生关系密切。

It's principal products are Potassium superoxide,Potassium metal,Sodium peroxide and other fine chemical products.

公司主要经营的产品有超氧化钾，金属钾，过氧化钠等精细化工产品。

Fructose , syrup fructose , acesulfame-k, AK, potassium, synthetic sweetener , sucralose , sweetener, sugar replacer , sugar substitute , intense sweetener , disaccharide, non-reducing sugar , moisture retention,moistrure agent ,starch sugar , isomalt , palatinit , isomaltitol, Polyols,, sugar polyol , xylitol ,sorbitol ,mannitol , xylitol ,sugar ,syrup glucose, polydextrose , erythritol , sorbitol syrup , lactose , stevia , Puer Tea , Liupu Tea, Fructooligosaccharides, sweeting agent, trehalose , syrup trehalose, Stevioside

果糖，果糖糖浆，安赛蜜-钾，支ak ，钾，合成甜味剂，三氯蔗糖，糖，糖替代品，食糖替代品，激烈糖，双糖，非还原糖，保湿，水分剂，淀粉糖，异麦芽， palatinit ， isomaltitol ，多元醇，糖醇，木糖醇，山梨醇，甘露醇，木糖醇，糖，糖浆中的葡萄糖，聚葡萄糖，赤藓糖醇，山梨醇糖浆，乳糖，甜菊糖，普洱茶， liupu茶叶，低聚果糖， sweeting剂，海藻糖，糖浆海藻糖，甜菊糖

Nanoparticle has different influence on the absorption of N ,P ,K .The test of tank farming confirm that the absorptive capacity of plants added low concentration nanoparticle on N , K is weaker than that of comparison .

纳米微粒对植株在氮磷钾的吸收方面有不同的影响，在水培条件下，低浓度纳米胶液对玉米幼苗吸收氮钾养分有抑制作用，但对于磷的吸收，有促进作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。