- 更多网络例句与硼相关的网络例句 [注:此内容来源于网络,仅供参考]
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The formation situation of the bond for metallocarboranes and metalloboranes is analyses with the bond valence formula for atomic cluster compound.
运用原子簇化合物键价公式,对金属碳硼烷和金属硼烷进行了成键情况分析,提出了碳硼金属三中心键和硼硼金属三中心键的概念,并指出了簇合物型、夹心型和多层夹心型金属碳硼烷的稳定存在主要是形成金属三中心键的缘故
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Light condition to the attention of oral hygiene, local Tu冰硼散or aureomycin glycerol; if red formidable, and even oral mucosa have ulcers, should be good oral care, more than cleaning the mouth, and timely infection control.
病情轻的要注意口腔卫生,局部涂冰硼散或金霉素甘油;如果红得厉害,甚至口腔粘膜还有溃疡,应做好口腔护理,多清洗口腔,并及时控制感染。
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Using the solid boronization cut-and-try method determined the boronization craft the parameter (boronization temperature, boronization time, rare earth join quantity and chromium join quantity) to the boronization level thickness influence, thus determines the reasonable boronization craft route.
运用固体渗硼实验法来确定渗硼工艺的参数(渗硼温度、渗硼时间、稀土加入量和铬加入量)对渗硼层厚度的影响,从而确定合理的渗硼工艺路线。
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And the development and formation of the sieve tube elements of the different cultivars were influenced by the different levels of B: the sieve tube elements of the two cultivars were not formed at the level of 0.001mg/L; At the level of 0.01mg/L, the sieve tube elements of the high efficiency (Qingyou 10) cultivar could be formed, but the structure of the sieve tube elements was not complete, and the abruption and differenciation of the sieve tube elements of the low efficiency cultivar were inhibited, they were not formed; At the level of 0.01mg/L, the sieve tube elements of the two cultivars were formed.
不同硼水平下,不同硼效率甘蓝型油菜品种根尖筛管分子的发育与形成受到影响:硼浓度为0.001mg/L时,两个油菜品种都不能形成筛管分子;硼浓度为0.01mg/L时,硼高效品种青油10号筛管分子可以形成,但结构受到破坏,而硼低效品种Bakow筛管分子的分裂与分化受阻,几乎不可能形成成熟的筛管分子;硼浓度为0.5 mg/L时,两个油菜品种都能正常生长发育。
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The organoboron compounds in this paper are based on triarylboranes, boronic acids and boronic esters. The structure-property relationship and sensing mechanism are elucidated. Organoboron compounds as Lewis acid can be used as fluoride probe with high sensitivity and selectivity because they have a unique LUMO in which the π-conjugation is divergently extended through the vacant p-orbital of the boron atom. The complexation of the boron π-electron systems with fluoride ion would interrupt the π-conjugation extended through the boron atom, causing the change of photophysical properties.
介绍了基于三芳基硼化合物、硼酸和硼酸酯的有机硼化合物在氟离子检测中的应用,评述了这些化合物的结构和检测性能之间的关系,讨论了检测机理,即有机硼化合物中硼原子空的p轨道使其作为路易斯酸能够选择性地结合氟离子,硼原子与氟离子的结合破坏了硼中心与芳香取代基的p-π共轭,引起有机硼化合物光物理性质的变化,从而实现对氟离子的高选择性检测。
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The optimal boron concentration for growth of pea (Pisum sativum L.) andcucumber (Cucumis Sativus L.) plants was screened by designing a series of boronconcentration in nutrient solution and the influeuce of boron deficiency or toxicityon integrity of cell membrane in different organs of the two plants was studied bymeasuring pH of the nutrient solution,〓 concentration and conductance in rootexudate solution and extracting solution of different organs from the two plants.
用不同浓度硼的营养液培养豌豆、黄瓜植株,筛选和确定在温室条件下生长所需的最适硼浓度和硼毒害浓度;进而通过对缺硼、对照和硼毒害处理后营养液pH变化,根分泌物和不同组织浸提液中K+浓度和电导率的测定,研究了缺硼和硼毒害对两种植物不同组织细胞膜完整性的影响。
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TiC has a refinement to both primary and eutectic borides, some of which can act as the substrate for primary boride making refinement, the remainder inserting into the primary boride imped it growing in matrix; TiC inserting into the primary boride impedes the eutectic boride growing on the primary boride and decreases the formation of large block eutectic boride.
TiC对初生硼化物和共晶硼化物均有细化作用:一部分作为初生硼化物异质形核核心使其细化,另一部分在基体中嵌入初生硼化物阻碍其生长;嵌入初生硼化物的TiC改变了共晶硼化物依附初生硼化物的特点,使共晶硼化物分布细小均匀。
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Author was menstruated content of boron and researched the status of lack of Boron and researched relativity of its Influencing facto, the results showed that the average content of available boron in the yellow soil was 0.39±0.27 mg/kg, 80 percent of its was under 0.5mg/kg which was lack for boron and 17.44 percent of its was under 0.2mg/kg which was especially lack for boron; The distribute frequencies of available boron contents of yellow soils in Chongqing was dispersedly, its range of 0.07mg/kg to 1.99mg/kg. The diversity of different zoology area was distinct. The result of pertinence analyses showed that available boron contents had correlativity with the pH(r=0.181** n=281) and CEC(r=0.124** n=281 and It had correlativity with Organic matte When the content of organic matte is high; in addition, soil granule、clime was the Influencing factor of availability of boron in Yellow Soils in Chongqing.
笔者通过调查取样对重庆市黄壤硼的含量进行测定并分析了缺硼的程度,对其影响因素进行了相关性分析,研究结果表明:重庆市黄壤有效硼的平均含量为0.39±0.27mg/kg,其中近80%的土壤样品有效硼含量低于0.5mg/kg,属于低硼或缺硼土壤,还有17.44%的土壤样品有效硼含量低于0.2mg/kg,属于极度缺硼的土壤;而有效硼含量的分布频率比较分散,变幅较大,从0.07mg/kg~1.99mg/kg,变异系数达到69.41%,不同生态类型区土壤有效硼含量的差异十分明显;而相关性分析结果表明:土壤有效硼与土壤pH值(r=0.181** n=281)和CEC(r=0.124** n=281呈正相关,在有机质含量较高的条件下与其相关性也较为显著(r=0.347** n=90,而土壤质地以及气候也对重庆市黄壤硼的有效性有很大的影响
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The recent progress in molecular design and synthesis of polyborosilazane precurosors for SiBCN ceramics is reviewed.Especially the borazine modified polyborosilazane,monofunctional borane modified polyborosilazane on side chai...
本文分4个方面,即基于硼吖嗪的聚硼硅氮烷、侧基含有环硼氮烷或单硼烷的聚硼硅氮烷、基于多官能硼烷构筑的聚硅氮烷和含硼聚硅基碳化二亚胺,从聚硼硅氮烷分子结构设计、改性、合成及在多维尺寸材料中初步应用的角度综述了该领域国内外研究的新进展,指出了聚硼硅氮烷陶瓷前驱体设计合成研究发展中值得关注的新方向。
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Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.
中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料(如硼化钛、氮化硼、碳化硼和磷化硼等)通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能,有些还具有奇异的光、电、磁、热学性能和催化活性,是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。
- 更多网络解释与硼相关的网络解释 [注:此内容来源于网络,仅供参考]
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boride:硼化合物 硼化物
boricoxideanomaly 氧化硼的异常性 | boride 硼化合物 硼化物 | boridebasecerment 硼化物基金属陶瓷
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borosilicate:硼硅酸盐 硅酸硼
boroscope 内径表面检查仪 | borosilicate 硼硅酸盐 硅酸硼 | borosilicatecrown 硅酸硼冕玻璃
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borosilicate:硼硅酸盐,硼矽酸盐
boroncarbide碳化硼 | borosilicate硼硅酸鹽,硼矽酸鹽 | borosilicate glass硼硅玻璃,硼矽玻璃
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colemanite:硬硼钙石
一、土耳其的硼资源情况 土耳其是地跨欧亚两洲的国家,也是世界上硼资源储量最多的国家之一. 其硼的储量约占世界的60%. 土耳其主要的硼矿类型有三种:天然硼砂(tincal)硬硼钙石(colemanite)和钠硼解石(...
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colemanite:硼钙石
中国化工网 土耳其是地跨欧亚两洲的国家,也是世界上硼资源储量最多的国家之一. 其硼的储量约占世界的60%. 土耳其主要的硼矿类型有三种:天然硼砂(tincal)、硬硼钙石(colemanite)和钠硼解石(ulexite)...
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sodium boron salicylate; sodium borosalicylate:硼柳酸钠;硼水杨酸钠
硼氢化钠 sodium borohydride; sodium boron hydride | 硼柳酸钠;硼水杨酸钠 sodium boron salicylate; sodium borosalicylate | 硼硅酸钠 sodium borosilicate
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boron trifluoride etherate:三氟化硼醚化物,醚合三氟化硼
boron trifluoride 氟化硼 | boron trifluoride etherate 三氟化硼醚化物,醚合三氟化硼 | boron water 含硼水
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ferroboron:硼铁 硼铁合金 铁硼合金
ferroaugite 富铁辉石 | ferroboron 硼铁 硼铁合金 铁硼合金 | ferrocal 非劳克铝合金
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Borane:硼氢化物 硼烷 甲硼烷
borafog 布拉雾 | borane 硼氢化物 硼烷 甲硼烷 | boranepoisoning 甲硼烷中毒
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borazon:一氮化硼
此次开发成功的低介电率膜使用一氮化硼(Borazon)化合物的改良材料. 一氮化硼由硼(B)和氮(N)组成,采用类似苯环的结构(图2). 并未置换硼中结合的氢(H),而是置换了某些化合物. 将该硼类化合物作为层间绝缘膜使用时,