查询词典 Koh-i-noor

This dissertation successfully fabricated cross-linked polysiloxanes under base catalysts such as potassium hydroxide siloxanolate or tetramethylammonium hydroxide (Me_4NOH) siloxanolate by anionic ring-opening copolymerization of cyclosiloxanes and Polyhedral Oligomeric Silsesquioxanes as multifunctional monomers.

本论文首次通过阴离子开环共聚，成功地将POSS大分子作为多官能团单体，与环硅氧烷在KOH硅醇盐或Me_4NOH硅醇盐等碱性催化剂的作用下，直接合成交联聚硅氧烷：通过调节POSS大分子和环硅氧烷单体的种类以及化学计量比，可合成出一系列不同种类和不同交联密度的交联聚硅氧烷；并对其阴离子开环共聚机理以及极性调节剂DMAc对凝胶时间的影响进行了详细讨论；同时借以凝胶含量和溶胀比、GPC、FT-IR、固体~(13)C和~(29)Si NMR、WAXD、DSC以及TG等手段对所得聚合物的微观结构以及热性能进行了详细考察。

In order to elucidate the effect of the texture, structure and particle size of aggregate on determining its ASR reactivity, the texture, structure and ASR features of zeolitic pearlite and siliceous gravel were examined by optical microscope, XRD and SEM/EDS.

本文第一部分充分结合压蒸法和快速砂浆棒法的优点，以沸石化珍珠岩和江苏硅质砾石为集料对比研究了胶砂比和集料级配对砂浆试体在80℃10％KOH溶液中ASR膨胀的影响。

The effect of C/A and aggregate grading on ASR expansion were evaluated by measuring the expansion of mortar bars with various graded zeolitic perlite and siliceous gravel immersed in 10％ KOH solution at 80℃ respectively.

近年来广泛使用的快速砂浆棒法(ASTM C1260)也仅在养护条件上做些改进，而试体的尺寸、胶砂比和集料级配等均沿用ASTM C227。

The bamboo chars were obtained by carbonizing bamboos at different temperatures under conditions without air.

以竹节为原料，在隔绝空气的条件下，经不同温度炭化处理后与KOH混合，制取竹炭基高比表面积活性炭。

AFTN demulsifiers of polyoxypropylene-polyoxyethylene amine ethers are synthesized from oxypropylene, oxyethylene and amine under a lower pressure less than 0.5 MPa and in the presence of the KOH catalyst, oxypropylene polymerizes at (130±5)℃ temperature, and oxyethylene polymerizes at (120±5)℃ temperature.

以伯胺为起始剂、氢氧化钾为催化剂，分别以环氧乙烷［开环聚合温度为(120±5)℃］和环氧丙烷［开环聚合温度为(130±5)℃］为单体，在0.5 MPa以下合成AFTN系列嵌段聚醚型破乳剂。

The cocentrated samples are saponified directly with KOH. The cholesterol in the saponified samples are e...

用已知量维生素D加入到强化麦乳精、强化奶粉及浓缩油剂中，其回收率分别为106—107％，83.8—85.7％，97.2—101％。

It was found that 15-g mussel could be completely saponified in 2 min in 30mL of 1mol·L〓 KOH-methanol solution under the optimized microwave heating conditions.

微波皂化迅速彻底，在选定的条件下只需2min即可进行完全。

Compared with extruded full fat soy bean, the oil of SPFFSB was more stable during storage.

结果表明同膨化工艺相比，热处理大豆的贮藏稳定性好于膨化大豆，KOH氮溶指数和脲酶活性均达到饲用要求。

Jatropha Curcas oil was used as feedstock for producing biodiesel by transesterification,and adding sodium hydroxide,potassium hydroxide or sodium methoxide as catalyst respectively. The optimal conditions were obtained:molar ratio of methanol to oil 6∶1,reaction temperature 60 ℃,reaction time 80 min,mixing intensity 600 r/min,catalyst concentration for NaOH,KOH,or CH3ONa 1.2% of oil weight,The yield of biodiesel was above 97%. The physico-chemical indices of the biodiesel obtained met the quality standard ASTM of USA and DIN V of Germany.

选用了非食用油麻疯果油为原料，以氢氧化钠、氢氧化钾、甲醇钠为催化剂，通过酯交换法制取生物柴油，研究表明最适宜工艺条件为：醇油比6∶1，反应温度60 ℃，反应时间80 min，搅拌强度为600 r/min，催化剂用量为1.2%，转化率达到97%以上，且生物柴油各项理化指标均符合美国和德国测试标准。

Synthesis 3,5-dihydroxytoluene by ethyl acetoacetate and diketene as material(yield 6%),by 3-methyl-4-chlorophenol and KOH as material(yield 30-40%)respectively,It was solved for product separation and purify.

分别以乙酰乙酸乙酯与双乙烯酮为原料(收率6%)、3-甲基-4-氯苯酚与氢氧化钾为原料(收率30-40%)合成了3，5-二羟基甲苯，解决了产品分离纯化问题。3-甲基-4-氯苯酚路线进行了中试，中试收率为20%。

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％。