1) Nickel button
镍冠
2) activated nickel button
活性镍冠
1.
Pre production trials of activated nickel button containing sulphur by a new process are described.
详尽介绍了以新工艺制取含硫活性镍冠的试生产情况。
3) Ni-Cr-Based porcelain-fused-to-metal crown
镍铬合金烤瓷冠
1.
Methods:60 healthy cases were selected as control group;60 cases who were treated by Ni-Cr-Based porcelain-fused-to-metal crown were selected as experimental group.
目的:观察镍铬合金烤瓷冠修复后头发和血液中镍铬元素含量的变化,探讨镍铬合金长期存在于口腔中的安全性。
2.
Methods: 60 healthy cases were selected as control group;60 patients who were treated with Ni-Cr-Based porcelain-fused-to-metal crown were selected as experimental subjects which were divided into two groups:group1(half year)and group2(1 year)after the operation.
目的:研究镍铬合金烤瓷冠修复后血清中镍铬元素含量的变化,探讨镍铬合金长期存在于口腔中的安全性。
4) Crown
[英][kraʊn] [美][kraun]
冠
1.
Study on fracture toughness of glass infiltrated ceramic inner crown;
氧化铝玻璃渗透陶瓷底层冠强度的研究
2.
Clinical problems and their managements after crown and fixed bridge restoration
冠桥修复后的临床常见问题及处理对策
3.
Methods To measure the quantity of beryllium ion which was released from common used Ni-Cr porcelain crown(controlling group),polished Ni-Cr porcelain crown(polished group),gilded Ni-Cr porcelain crown(gold-plating group) and gilded Ni-Cr porcelain crown prolonged 50%(gold-plating prolonged 50% group) in artificial saliva after 1 month,3 months and 6 months by means of ICP-.
方法用电感耦合等离子体发射光谱法(ICP-AES)检测普通镍铬合金烤瓷全冠组(对照组)、打磨后镍铬合金烤瓷全冠组(打磨组)、喷砂镀金镍铬合金烤瓷全冠组(镀金组)及喷砂镀金加时50%镍铬合金烤瓷全冠组(镀金加时50%组)在人工唾液中1个月末、3个月末、6个月末铍离子的析出量,比较不同处理因素对铍离子析出量的影响以及同一处理下铍离子析出在不同时间的变化规律。
5) shoot
[英][ʃu:t] [美][ʃut]
冠
1.
Dynamic growth model for root and shoot of winter wheat considering the influence of soil moisture;
改变土壤含水量影响的冬小麦根和冠生长动态模型
2.
The effect of sustaining time of watering stress on root and shoot weight accumulation in winter wheat;
水分胁迫持续时间对冬小麦根冠生物量累积的影响
6) Corona
[英][kə'rəʊnə] [美][kə'ronə]
冠
1.
In the present paper,the Laplacian spectrum of coronas was studied.
主要研究冠的拉普拉斯谱。
2.
In this paper, it is proved that I(K 1∨T B) and corona of K 1∨T B ,is sequential graph.
该文研究了K1∨TB 的冠I(K1∨TB) ,证明了I(K1∨TB)是序列图 。
补充资料:硫酸亚镍,镍钒
NiSO4·6H20 分子量262.86
性状 有六水物、无水物和七水物三种,以六水物为主。六水物为蓝色或翠绿色细颗粒结晶体。密度2.07g/cm3。溶于水及乙醇,水溶液呈酸性。朋208℃时失去全部结晶水,840℃开始释出三氧化硫,变为氧化镍。无水物为黄绿色结晶体。密度3.68g/cm3。溶于水,不溶于乙醇及醚。七水物为绿色透明结晶体。昧甜而涩。稍易风化。密度1.948g/cm3。溶于水及乙醇、极易潮解,硫酸镍接触尘沫及有机物,有时能引起燃烧或爆炸。
应用领域 主要用于电镀工业,是电镀镍和化学镍的主要镍盐,也是金属镍离子的来源,能在电镀过程中,离解镍离子和硫酸根离子。硬化油生产中,是油脂加氢的催化剂。医药工业用于生产维生索C中氧化反应的催化剂。无机工业用作生产其他镍盐如硫酸镍铵、氧化镍、碳酸镍等的主要原料。印染工业用寻生产酞青艳蓝络合剂,用作还原染料的煤染剂。另外,还可用于生产镍镉电池等。
性状 有六水物、无水物和七水物三种,以六水物为主。六水物为蓝色或翠绿色细颗粒结晶体。密度2.07g/cm3。溶于水及乙醇,水溶液呈酸性。朋208℃时失去全部结晶水,840℃开始释出三氧化硫,变为氧化镍。无水物为黄绿色结晶体。密度3.68g/cm3。溶于水,不溶于乙醇及醚。七水物为绿色透明结晶体。昧甜而涩。稍易风化。密度1.948g/cm3。溶于水及乙醇、极易潮解,硫酸镍接触尘沫及有机物,有时能引起燃烧或爆炸。
应用领域 主要用于电镀工业,是电镀镍和化学镍的主要镍盐,也是金属镍离子的来源,能在电镀过程中,离解镍离子和硫酸根离子。硬化油生产中,是油脂加氢的催化剂。医药工业用于生产维生索C中氧化反应的催化剂。无机工业用作生产其他镍盐如硫酸镍铵、氧化镍、碳酸镍等的主要原料。印染工业用寻生产酞青艳蓝络合剂,用作还原染料的煤染剂。另外,还可用于生产镍镉电池等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条