查询词典 acid ratio

Papain was modified using different anhydrides. The average ratio of modified-NH2 was tested by a trinitrobenzenesulfonic acid method. The native and modified papain samples were purified by dialysis and their structures were characterized by UV and IR.

用不同酸酐对木瓜蛋白酶进行化学修饰，以三硝基苯磺酸法测定修饰酶的平均氨基修饰度，对修饰前后的木瓜蛋白酶分别纯化并通过UV-vis和IR对其结构进行了表征。

Based on the above actuality, this paper studied the high quality incineration technics and theory in a self-designed rotary incinerator. The variation of several operation conditions such as waste feedrate, excess air ratio, air distribution and rotation speed of the fulcra has been employed to study the formation and control theory of NOx, SO〓and HCl. Based on the experimental results, a simple and comprehensive model has been proposed to describe the process of acid gas formation and reduction. The results show that the formation of pollutants strongly depend on the incineration state of the solid waste in the rotary incinerator.

本研究在—自行设计的新型转式垃圾焚烧炉中，重点研究了焚烧炉的优质焚烧工艺和理论，并在此基础上，研究模化有机垃圾在转式焚烧过程中酸性污染气体NOx，SO〓和HCl的生成控制原理，特别是研究进料率、过剩空气系数、配风和转轴转速等条件对NOx，SO〓，HCl生成的影响，并在此基础上建立了转式垃圾焚烧炉中酸性污染气体的生成理论模型，结果表明，焚烧过程污染物的生成强烈地依赖于垃圾在转式焚烧炉内的燃烧状态，必须在高垃圾燃烬率和低污染物排放之间寻找优化的平衡条件。

A balance should be made between the high incineration efficiency and lower pollutants emission. The experimental results show that by means of post combustion and by the addition of Ca-base compounds, the acid gases can be effectively controlled and give the following optimized conditions: first stage air ratio: 0.4~0.6, feed rate: 13~13. 5Kg, rotation speed of fulcra: 3. 5~5r/min.

实验结果表明：新型转式垃圾焚烧炉采用二次燃烧技术并在炉内添加钙基物质，当一次空气系数为0.4~0.6，总空气系数为1.2，进料率为13~13.5Kg/h，转轴转速为3.5~5r/min时，模化有机垃圾在转式垃圾焚烧炉内可处于稳定的两段焚烧状态，垃圾的燃烬率可达90%，NOx，SO〓和HCl的排放得到有效控制。

Taking the brines from Qinghai Chaerhan salt lakes as raw material, sulfonated kerosine as diluting agent, the experiment of extracting boric acid from brines by 2 - ethyl - 1,3 - haxanediol is carried out. The concentration of extractant,acidity, the ratio of organic phase to brine, the time of extraction and extration isotherm are investigated.

以青海察尔汗盐湖提钾后老卤为原料，以磺化煤油为稀释剂，从萃取剂浓度、酸度、相比、萃取时间、萃取等温线5个方面加以试验，获得了2-乙基-1，3-己二醇从卤水中萃取提硼的最佳试验条件，并与2-乙基己醇和磺化煤油的萃取体系进行比较，得出二元醇的萃取效果高于一元醇的结论。

The mobile phase was a mixture of 20 mmol\L methylsulfonic acid and 20% acetonitrile\water at the ratio of 87∶13.

流动相为20mmol\L甲基磺酸-20%乙腈水混合溶液(体积比为87∶13)，流速为1.0mL\min

The leaching ratio of copper from the copper slag, roasted at 680℃ for 4 hours, attains approximately 92% under the conditions of 2 mol/L sulfuric acid leaching for 2 hours at 70℃.

在680℃焙烧4h后，采用2mol/L硫酸于70℃浸出2h后可以达到良好的浸出效果，使铜的浸出率达到92%以上。

Low molecular N,O-carboxymethyl-chitosans with different degrees of substitution were synthesized under heterogeneous conditions by controlling the reaction temperature,the reaction time and the molar ratio of low molecular weight chitosan to chloroacetic acid.

采用不同反应温度、反应时间和低分子量壳聚糖与氯乙酸摩尔比，在非均相反应体系中合成了不同取代度的低分子量N，O-羧甲基壳聚糖。

The results showed that:(1) The drug micropellet with reasonable drug entrapment ratio and release velocity would be obtained if the amountof crosslinking agent and drugs was controlled successfully;(2) The Ibuprofen micropellet had a suitable release rate in artificial intestinal juice but it was a very low release rate in artificial succus gastrius because it had a low solubility in acid medium.

以环氧氯丙烷为交联剂，羟丙基壳聚糖为载体，将布洛芬做成缓释控释药物微丸，讨论了包埋条件对微丸性能的影响以及药物在人工胃液和人工肠液中的释放行为。结果表明：(1)合理控制交联剂用量和药物投入量，能够得到药物包封率和释放性能良好的药物微丸；(2)布洛芬药物微丸在人

"Lin Po-taste" of amino acid nutrition of organic fertilizer comprehensive nutrient supply timely and reasonable ratio, the improvement of agricultural product quality of internal and external At the same time, in Cailei can greatly reduce the amount of nitrates, thus reducing the human health Hazard.

&莲味宝&氨基酸有机肥营养全面养分供应及时，配比合理，提高农产品的内在和外在品质同时，对中菜类能大大减少硝酸盐的数量，从而减少对人体健康的危害。

In Fuji apple, Starking apple and Feicheng peach, 1-MCP slowed the conversion of TA content and SSC, maintained the ratio of sugar to acid and reduced the flavors loss in later storage time. 1-MCP also reduced the chilling rate and fruit weight loss of Feicheng peach stored at 0℃, but accelerated the decay of Feicheng peach and the detachment of grape berry from peduncle stored at 20℃. The effect of 1-MCP on the decay of strawberry was related to temperature: alleviated at 20℃ and enhanced at 0℃.

在富士、红星和肥城桃果实中，1-MCP处理都延缓了果实可滴定酸和可溶性固形物含量的转化，维持了果实贮藏后期糖酸比，抑制了果实贮藏后期风味的损失。1-MCP处理还减轻了O℃贮藏的肥城桃果实冷害的发生和果实失重，但促进了20℃下肥城桃果实的腐烂和巨峰葡萄的脱粒现象。1-MCP对草莓果实腐烂发生率的影响则与温度有关：20℃下减轻，0℃下加重。

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％。