查询词典 acid-carbonate

The result makes clear: CF surface acidity is luscious it is good to increase and increase effect of acid treatment of; thick saltpetre what round amount handles time as thick nitric acid to oxidize than air, when the time that handles CF when thick nitric acid is 20 Min, tensile strength of CF/TPI composite material and flexural strength rise respectively 10% with 14%, XPS shows CF surface active is right now luscious the group increases than was not being handled 35.89%.

结果表明：CF表面酸性官能团的数量随着浓硝酸处理时间的增加而增加；浓硝酸处理效果比空气氧化好，当浓硝酸处理CF的时间为20 min时，CF/TPI复合材料拉伸强度和弯曲强度分别提高10%和14%，XPS表明此时CF表面活性官能团比未处理增加35.89%。

Fruit yields, weight of single fruit, per fruit pulp weight, fruit edible ratio, water content of sarcocarp were all increased with the increase of SWC and reached the maximum at SWC75. Soluble brix, soluble suger and titratable acid of fruit had notable or significantly notable negative-linear relations with SWC (R~2 = 0.880 7*; R~2 = 0.717 7* and R~2=0.965 1**) while pH of fruit was increased as SWC did. Brix-acid ratio of fruit was increased linearly with the increase of SWC (R~2=0.908 6*, n=50) and reached the maximum at SWC75. Suger-acid ratio also increased with SWC.

在SWC≤75%时，柑橘产量，单果重，单果果肉重、果实可食率、果肉含水量等随SWC增加而显著增加，在75%时各指标值最高；果实可溶性固形物、可溶性糖和可滴定酸含量分别与SWC呈显著或极显著线性负相关，相关系数分别为R~2=0.880 7~*(n：50)、R~2=0.717 7~*(n=50)和R~2=0.965 1~n=50果实pH值则呈相反趋势，柑橘果实固酸比和糖酸比随SWC的增加而显著增加，果实固酸比与SWC呈显著线性相关(R~2=0.908 6~*，n=50，糖酸比在SWC=75%时达到最大值。

The results indicate that it is possible to identify and distinguish these siccative oils because the unsaturated acid had changed into azelaic due to oxidation and polymerization during the drying process to make the chromatogram of siccative oils have a typical peak of C9 compound and provide a finger marker of m/z 217, and the concentration ratio of palmitic acid to stearic acid remains constant with time to facilitate the differentiation of oils.

分析时采用了热裂解与甲基化同时进行的技术。分析结果显示，4种干性油的不饱和脂肪酸在成膜后的甲基化产物均为壬二酸二甲酯，离子质量与离子电荷量比值为217，是干性油的特征检测峰。4种油中不同含量的软脂酸和硬脂酸在干性油成膜前后的比值不变，为干性油的甄别提供了可能性。

This cDNA encodes a 23 amino acid signal peptide and a 144 amino acid mature protein, which shares 99.8% or 99.4% for nucleotide identity with silver fox and canine, respectively, and 100% for amino acid identity.

序列分析表明VuIFN-g cDNA全长501 bp，编码23个氨基酸的信号肽和144个氨基酸的成熟肽蛋白，与已发表的银黑狐和犬IFN-g 核苷酸序列同源性为99.8%和99.4%；氨基酸同源性均为100%。

RESULTS β-sitosterol(1),2,6-dihydroxyhumlan-9-3(12),7(13),9-triene(2),quercetin-7-methyl ester(3),protocatecheuic acid(4),shikimic acid(5),shikimic acid methyl ester(6) and daucosterol(7) were isolated from Ill...

结果从厚皮香八角果皮中分离得到了7个化合物，分别是β-谷甾醇(1)2、，6-dihydroxyhumulan-9-3(12)，7(13)，9-triene(2)、槲皮素-7-甲基醚(3)、原儿茶酸(4)、莽草酸(5)、莽草酸甲酯(6)和胡萝卜苷(7)。

The key steps involved Friedel-Crafts reaction of o-cresol and the Wittig reaction for construction the skeleton of amine moiety,at the same time, using the synthesis of E,(7S)-7-methoxytetradec-4-enoic acid in chapter 2,and Johnson-Clainsen rearrangement as a key step for construction the fatty acid part,the corresponding acid was prepared in 23%and 50%overall yield,respectively.

随后将手性不饱和脂肪酸和氨片段进行酰胺化反应构筑了malyngamide M的基本骨架，再将Z-烯氯转化为E-烯氯完成了目标分子的全合成，高立体选择性地构筑了末端烯氯结构，为制备其它含有类似烯氯结构的malyngamides探索出行之有效的合成路线。

The aluminum foils were galvanostatically etched in an aqueous solution of hydrochloric acid, sulfuric acid, sodium dichromate and hydrofluoric acid.

发现硫酸的添加主要是改善了溶液的钝化性能，铬酸酐的添加则不仅改善了溶液的钝化性能，而且减轻了阴极极化。

Being combining with products distribution in styrene oxidation, we propose the styrene epoxidation carry out with Ti metallacyclo intermediates, And at the same time Ti-ZSM-5 have properties both catalytic epoxidation and acid-catalysis, namely the skeletal Ti can catalyze styrene epoxidation to styrene oxide and the skeletal Ti and Al can provide Lewis acid site to cause the rearrangement of styrene oxide to phenylacetaldehyde rapidly, the solvolysis to glycols and the cleavage of C=C double bond. Ti-ZSM-5 can also provide Bronsted acid site simultaneously, which is also catalytic center for the solvolysis to glycols.

同时结合Ti-ZSM-5催化选择性氧化苯乙烯反应的产物分布结果，提出苯乙烯环氧化反应可能是通过金属有机环机理进行；Ti-ZSM-5同时具有催化环氧化和酸催化两种功能，其骨架钛可催化苯乙烯环氧化生成环氧苯乙烷，而骨架钛和骨架铝等可提供Lewis酸位使环氧苯乙烷迅速发生重排生成苯乙醛从而使其成为反应的主要产物，同时还可发生加成以及碳碳键的裂解等副反应：Ti-ZSM-5也提供Bronsted酸位，它也是生成加成产物的活性中心。

It also contains palmitic acid, stearic acid and arachidic acid and other unsaturated fatty acids 19.9%.

此外，它还含有棕榈酸，硬脂酸和花生酸等不饱和脂肪酸的19.9％。

While the linoleic acid, pimelic acid, and suberic acid mostly displayed promotion effects on eating.

亚油酸、庚二酸、辛二酸主要表现为促进取食的作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐