查询词典 hydrochloric acid

Seeds were sprouted at 25 ℃.The root-tip with 0.5~1.0 cm length were cut and treated in 4 ℃ refrigerator for 24 hours, fixed for 1~1.5 hours with Carnoy's fixative, differentiated for 10-15 min with hydrochloric acid and Ethanol 95 %(1:1), pressed to section in carmine for staining. Them were observed under microscope, then the samples that differentiated well chosen, covered on frozen station with mountin Canada balsam, for micro-photographing, counting and measuring.

方法］种子25℃萌发，待根尖长0.5~1.0 cm，冰箱4℃冷藏预处理24h，卡诺固定液固定1~1.5h，1：1的浓盐酸和95%乙醇解离10~15min，改良的石碳酸品红液染色，镜检取分散良好的标本，冰冻揭盖片，中性树胶封片显微照像、计数、测量。

The kinetics of chrysotile in hydrochloric acid is studied by building the overall kinetic model for the fibrous particle in liquid-solid reaction.

进而通过建立液－固相反应纤维状颗粒的宏观动力学模型，研究了纤蛇纹石盐酸浸出的动力学过程。

Peristalsis mixes food with enzymes and hydrochloric acid from glands in its lining and moves the resulting chyme toward the small intestine.

胃的蠕动将食物与处于胃壁上的胃腺分泌的消化及盐酸混合，由此形成的食糜被推送入小肠。

Peristalsis mixes food with enzymes and hydrochloric acid from gl and s in its lining and moves the resulting chyme toward the small intestine.

胃的蠕动将食物与处于胃壁上的胃腺分泌的消化及盐酸混合，由此形成的食糜被推送入小肠。

Animal feeding stuffs - Determination of ash insoluble in hydrochloric acid; Technical Corrigendum 1

动物饲料。盐酸中不溶性灰分的测定。技术勘误1

After extracting by hydrochloric acid and taka diastase, the enzymatically treated sample can separated from fecula, fatty compound and protein and so on in millet completely.

小米中的VB1经前处理的酸解提取、酶解、氧化衍生、提纯后，可与小米中的淀粉、脂肪、蛋白质等物质完全分离。

Uranium solution is obtained electrolytically by reducing uranyl ion on mercury cathode. The effect of the addition of various aminopolycarboxylic acids (such as EDTA, DTPA, CyDTA and TTHA) and organic water-miscible solvents (such as CH3OH, C2H5OH and CH3COCH3) on the stability of ura-nium in air has been investigated. The absorption spectra of uraniumand uraniumin 1 mol/l and 9mol/l hydrochloric acid solutions are examined.

本文采用汞阴极电解还原法制备了铀溶液，研究了在盐酸介质中各种氨羧络合剂乙二胺四乙酸二钠、二乙三胺五乙酸、1，2-环已烷二胺四乙酸、三乙基四胺六乙酸和水溶性有机溶剂甲醇、乙醇和丙酮的存在对铀稳定性影响，测定了在不同盐酸浓度中铀和铀的吸收光谱。

Hebei name of a country boy from the initiative to other peer said he would use hydrochloric acid cleaning encrustation .

一名来自河北的姓国的小伙子主动对其他同伴说，他会用盐酸清洗水垢。

The ester was hydrolyzed by reaction with concentrated hydrochloric acid, which afforded flavin 7 in 85% yield in a 3:2 ratio of the 7- and 8-regioisomers.

该酯水解反应与集中盐酸，可提供黄素7日在85 ％，产量在1 3：2的比例， 7 -8 - r egioisomers。

In the presence of NaH and in DMF, the acyclic crown ethers 1a and 1b were synthesized by the reaction of di-or triethyleneglycol ditosylate and o-methoxymethoxybenzyl alcohol, which was obtained from salicylaldehyde via the protection of the hydroxyl group with chloromethyl methyl ether followed by the reduction of the formyl group with NaBH4. The hydrolysis of 1a and 1b with dilute hydrochloric acid provided the diphenolic type acyclic crown ethers 2a and 2b respectively in good yield.

将水杨醛与碱和氯甲基甲基醚反应，再经过NaBH4还原，即制得邻苯甲醇，然后将其在DMF中与NaH和二甘醇二对甲苯磺酸酯反应，得开链冠醚1a和1b.1a和1b经稀酸水解，即脱保护而分别生成新的酚型开链冠醚2a和2b。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。