查询词典 carbon

The principle of preparation for white carbon black is described, the influence of the concentration of fluosilicic acid, the dripping velocity of ammonia water, the reaction temperature and the curing time on the specific surface area of white carbon black are studied.

论述了白炭黑的制备原理，研究了氟硅酸浓度，氨水滴加速率，反应温度，陈化时间对白炭黑比表面积的影响。

Keywords: Community;Carbon fow;Carbon flux;Pack ice;Arctic

中文关键词：生物群落，碳流，碳通量，浮冰，北极

The results showed that the growth of root tips in liquid medium was better than that in agar-solidified medium and solid-liquid two phase medium, for that increasing agar concentrations in medium will reduce the root growth; darkness was beneficial for Fraxinus mandshurica root tip culture in vitro; as the carbon sources, sucrose was better than glucose and maltose as the carbon ...

结果表明，不添加琼脂的液体培养基对根尖的生长较添加琼脂的固体培养基和固—液培养基好，原因是增加琼脂的量会抑制根的生长；暗培养比光培养更有利于水曲柳离体根尖的培养；蔗糖作为碳源的效果较果糖和麦芽糖好，其中以3%的蔗糖对离体根尖的生长效果最好。

Ordered mesoporous carbon was successfully prepared using siliceous MCM-48 as template, p-toluenesulfonic acid as catalyst, and furfuryl alcohol as carbon source.

以纯硅MCM-48为模板、对甲苯磺酸为催化剂、糠醇为碳源成功制备了高度有序的中孔炭分子筛。

Highly ordered mesoporous carbon,denoted as CMK-5,was synthesized by using mesoporous silicates SBA-15 as template and furfuryl alcohol as carbon precursor.

以介孔硅SBA-15为模板，糠醇为碳源制备了高度有序的介孔碳(CMK-5)，并用微波法合成碳负载的铂纳米粒子的催化剂。

Ordered mesoporous carbon was successfully synthesized using siliceous MCM-48 as template,p-toluenesulfonic acidas catalyst,and furfuryl alcohol as carbon source by vapor depositon polymerization method.

以纯硅MCM-48为模板、对甲苯磺酸为催化剂、糠醇为碳源通过蒸汽沉积聚合制备了高度有序的中孔炭分子筛。

In some areas, the risk levels of carbon trichloride, hexachlorobutadiene, carbon tetrachloride, chlorylene, tetracarp, trichloroethane , chloroform, gammexane and other pollutants all exceed 10-4, all above the harm value of 1, and these pollutants are likely to cause risks to human health.

而少数区域的六氯乙烷、六氯丁二烯、四氯化碳、三氯乙烯、四氯乙烯、1，1，2-三氯乙烷、氯仿和六六六等污染物风险等级均大于10-4，危害商均大于1，这些污染物均能对人体健康产生风险。

It was difficult to extract corn pigments completely, for some of them were in a protein-bind state. It was better to use active carbon for the decolorization of GEON, the conditions were 40℃, stir time 6 hours, the ratio of carbon to hydrolyzate 1: 100 , but as to milk-like powder, it was better to extract pigments after spray drying.

最后，本文对玉米黄素的可抽提性也进行了初步研究，结果表明，部分色素与蛋白质结合而难以抽提，因而有机溶剂难以将色素抽提完全，对Gln活性肽营养液而言，可选用酶解后加活性炭进行脱色，脱色条件为40℃，搅拌6小时，炭液比为1∶100；而对黄粉蛋白乳粉而言，喷雾干燥后用乙酸乙酯脱色，可使酶解干燥后黄粉的异味减轻。

In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid, which is transported to the bundle sheath cells, where the carbon dioxide is released, then fixed by the enzyme ribulose bisphosphate carboxylase to form glycerate 3-phosphate, the first step in the Calvin cycle.

在叶肉细胞的叶绿体中二氧化碳与磷酸烯醇丙酮酸结合形成草酰乙酸，后被运到邻近的维管束鞘细胞，在那里二氧化碳被释放，后被核酮糖二磷酸羧化酶固定形成3－磷酸甘油酸，这是卡尔文的循环第一步。

The result's showed that there were four carbon species that existed as three types, namely, amorphous, filamentous, and graphitic carbon.

结果表明，催化剂上有四种含碳物种，以三种形态存在，即无定形碳、丝状碳或石墨碳。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。