子基,subbase英语短句,例句大全

子基,subbase
1)subbase[英]['s?b,beis][美]['s?b,bes]子基
1.Based on the concept of the open set relative to a subbase for the topology,this paper defines the locally connectedness relative to a subbase and the locally Path connectedness relative to a subbase,and obtain their basic properties,which genera-lize locally connectedness in a general topology.利用关于子基的开集这个概念,本文定义关于子基的局部连通和关于子基的局部道路连通,探讨它们的性质,推广了一般拓扑学中的相应结果。
2.The definitions of interior and closure of a set about a subbase for a topological space are introduced in this paper,and then some properties of them are discussed;the agreeable condition of the topology determined by the closure operation,interior operation and subsetfamily is gained.首先引入了拓扑空间的子集关于某个子基的内部和闭包的定义,然后讨论了它们的一些性质;在此基础上得出了闭包运算、内部运算与子集族确定的拓扑相同的条件。
3.The interior and the closure of a subset relative to a subbase for the topology are introduced to study the relationships between the rough sets and the topological space.覆盖方法在粗糙集理论研究中的应用越来越受到重视,而其中最重要的两个概念是最近引入的拓扑空间的子集关于子基的内部和闭包。
2)base ion盐基离子
1.Under the natural ecological condition of rape field cultivation,effect on rape soil and dissolution in the base ions of K,Na,Ca and Mg with different pH of simulated acid rain was investigated by spraying and soil columns leaching experiments.在油菜大田栽培的自然生态环境条件下,通过喷淋和土柱淋溶试验,研究不同pH模拟酸雨对油菜大田土壤K,Na,Ca和Mg等盐基离子溶出的影响。
2.Significant correlation between the total amount of four kinds of base ions in the leacheate and concentration of H + of acid rain is evident.4种盐基离子淋失总量与酸雨的氢离子浓度呈极显著的正相关关系 ,淋失量 Ca2 + >Mg2 + >Na+ >K+ ,其中 Na+对酸雨的酸度最不敏感。

英文短句/例句

1."Phosphoric acid is never found free in nature, but is always combined with a base to form a phosphate. "在自然状态下，磷酸无游离态，它总是同某一盐基离子结合成磷酸盐。
2.complementary ion effect of exchangeable base交换性盐基互补离子效应
3.Quantum Chemical Study of Alkyl Imidazolium Tetrafluoroborate Ionic Liquids烷基咪唑四氟硼酸盐离子液体的量子化学研究
4.Synthesis of 1-Butyl-3-methylimidazolitun Bromide as Intermediate of Ionic Liquid离子液体中间体1-丁基-3-甲基咪唑溴盐的合成
5.alkyl pyridinium salt烷基吡啶[季铵]盐（阳离子型活性型防水剂、柔软剂）
6.Synthesis and Application of Cationic Photoinitiators of Triarylsulfonium Salts;阳离子光引发剂三芳基硫鎓盐的合成及应用
7.Synthesis and Application of Cationic Photoinitiators of Diaryliodonium Salts;阳离子光引发剂二芳基碘鎓盐的合成与应用
8.Synthesis and Properties of Quaternary Ammonium Salt Cationic Surfactant with Ester Groups in Condition of Steric Hindrance含酯基位阻季铵盐阳离子表面活性剂的合成
9.STUDY ON ADSORPTIVE SEPARATION OF BERBERINE BY ROSIN-BASED FUNCTIONAL POLYMER松香基功能高分子吸附分离盐酸小檗碱研究
10.Selective Alkylation of Anilines in Quaternary Ammonium Salt Ionic Liquids季铵盐离子液体催化苯胺选择性烷基化反应
11.Rapid nitrate detection system based on ion selective electrode基于离子选择性电极的硝酸盐快速检测系统
12.Study on the synthesis of ionic liquid N-butylpyridine tetrafluoroborate离子液体N-丁基吡啶四氟硼酸盐的合成研究
13.HPLC ion chromatography determination of free ammonium salt in glutathione and other drugs containing amide离子色谱法测定谷胱甘肽等含酰胺基药物中游离铵盐的研究
14.nitrite ion standard solution亚硝酸盐离子标准液
15.A salt is a general term for an ionic compound.盐是离子化合物的统称。
16.Preparation and Properties of Supramolecular Imidazolium Hexafluorophosphate Ionic Liquid Gels咪唑基六氟磷酸盐离子液体的凝胶化及其超分子凝胶性能研究
17.Synthesis and Characterization of Ionic Liquids of the 1-isobutyl-3-methylimidazolium Tetrafluoroborate离子液体1-异丁基-3-甲基咪唑四氟硼酸盐的合成与表征
18.Trans-Conduct Melon K~+ Channel Gene into Arabidopsis Thaliana and Research on the Salt Tolerance of Transgenic Plants甜瓜钾离子通道基因MIRK的拟南芥转化及转基因植株的耐盐性研究

相关短句/例句

base ion盐基离子
1.Under the natural ecological condition of rape field cultivation,effect on rape soil and dissolution in the base ions of K,Na,Ca and Mg with different pH of simulated acid rain was investigated by spraying and soil columns leaching experiments.在油菜大田栽培的自然生态环境条件下,通过喷淋和土柱淋溶试验,研究不同pH模拟酸雨对油菜大田土壤K,Na,Ca和Mg等盐基离子溶出的影响。
2.Significant correlation between the total amount of four kinds of base ions in the leacheate and concentration of H + of acid rain is evident.4种盐基离子淋失总量与酸雨的氢离子浓度呈极显著的正相关关系 ,淋失量 Ca2 + >Mg2 + >Na+ >K+ ,其中 Na+对酸雨的酸度最不敏感。
3)base cations盐基离子
1.The effects of simulated acid rain on releasing base cations of red soil were studied with leaching experiments.通过模拟酸雨淋溶实验,分析在不同酸度酸雨淋溶下红壤中盐基离子释放的规律和特点,研究红壤对酸雨的缓冲机制。
2.The results showed that amounts of leaching base cations increased obviously when the pH value of simulated acidic rain was lower than 3.研究了模拟酸雨对我国南方主要土壤类型盐基离子淋溶的影响，结果表明，ｐＨ低于３。
4)fundamental atom基原子
5)base ions盐基离子
1.The releasing characteristics and mechanism of base ions in four types of typical soils(yellow soil,grey-brown purplish soil,red-brown purplish soil,red purplish soil),which were collected from the Three Gorges Reservior Region,are studied by simulated acid rain leaching of soil columns equipment indoor.通过室内模拟酸雨土柱淋溶实验,研究了酸雨作用下三峡库区4种典型土壤盐基离子的释放特点和释放机制。
6)ionic groups离子基团
1.Effect of ionic groups on the surface and the interfacial adhesion properties of poly(p-phenylene benzoxazole) (PBO) fiber;离子基团对PBO纤维的表面性能及其界面粘结性能的影响