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o-dihydroxybenzene相关的网络例句

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For example, H, atomic weight of 100,794 hydrogen, carbon FC atomic weight of 1201, the atomic weight of oxygen O for 1594, Copper Cu for F63546 and so on. F history, had also used the other two kinds of "benchmarks", and there have been two kinds of scales used in parallel .1803 years, J Dalton published the first atomic table, the hydrogen-quality of the original F son as a "benchmark "requiring H, atomic weight is 1. In 1826, JJ Berzelius Tony F are presented to the quality of 116 oxygen atoms O as a" baseline "(scheduled for O, E atomic weight 16), which is has been in use to 1961 "Oxygen unit." 1929, found that the oxygen in nature, in addition to the greatest abundance of 16O, there are a small amount of slightly heavier 17O and 18O two kinds of isotopes, and the different sources of oxygen, its composition is slightly different.

例如氢H的原子量为100794,碳FC的原子量为1201,氧O的原子量为1594,铜Cu为F63546等。F历史上,还曾用过另外两种"基准",并且有过两种标度并行使用。1803年,J道尔顿发表的第一张原子量表,把氢原F子的质量作为"基准",规定H的原子量为1.1826年,JJ贝F采利乌斯提出,以氧原子O质量的116作为"基准"(定O的E原子量为16),这就是一直沿用到1961年的"氧单位"。1929年发现,自然界中的氧,除丰度最大的16O以外,还有少量稍重的17O和18O两种同位素,并且不同来源的氧,其组成也稍有不同。

Under the condition of the borehole and sandstone formation filling with oil and water, respectively, the ability is different when different energy windows are selected to distinguish formation by simulating the detector response spectrum of various diameters and length of NaI and BGO crystal. The C/O value difference of BGO crystal is higher than that of NaI crystal when the energy window includes photoelectric peak, the first and the second escape peaks, but it is less affected by the different sizes of detector crystal. Using photoelectric peak corresponding to the energy window, the C/O value difference of BGO crystal detector is much larger than that of NaI, but it increases with the crystal size increasing. The C/O value is greatly affected by energy drifting, while relatively a little by energy resolution.

对于井眼和地层流体分别为油和水砂岩地层,模拟改变NaI和BGO晶体探测器的直径和长度时的非弹性散射γ射线响应能谱,采用不同能窗处理方法对地层流体的分辨能力不同,选取光电峰和第一、第二逃逸峰对应的能量窗时,BGO晶体探测器比NaI晶体探测器测量的C/O差值大,但受尺寸的影响不大;采用光电峰对应的能量窗时,BGO晶体探测器测量的C/O差值比NaI的大得多,且随尺寸的增加差值增大;能量道的漂移对C/O值影响较大,而能量分辨率对差值影响相对较小。

Based on the two normal forms, the decidability theorem in L is then proved and a deduction-based decision algorithm P is designed. The time complexity O(n3) of P is much less than the complexity O(2n) of the true value table method and the complexity O(n5) of HAL based on the tactic scheme.

首先定义了消解复杂性的两种范式:最简范式和文字范式,在此基础上采用演绎方法证明了L中的可判定性定理,并设计了命题公式的演绎判定算法P。P的时间复杂度为O(n^3),远远小于基于真值表法的O(2^n)和基于策略方案HAL的O(n^5)。

SEM result indicates that the mycelium on the surface of ectoblast of Nocardia cell is the important attachable site. IR spectrum shows that the functional groups such as —OH,—NH2, C==O, P==O, S==O, etc make vital contribution on adsorption process.

扫描电镜检测结果表明,诺卡氏菌细胞表面的菌丝是重要的吸附部位;红外光谱分析结果表明,诺卡氏菌表面含有—OH、—NH2、 C==O、 P==O、 S==O等活性官能团,它们在吸附过程中起重要作用。

On the other side, F is more electronegative than O, so Mn-F bond is more ionic in nature than Mn-O, and substitution of F for O will enhance the chemical stability of the spinels.

当然F/O间电负性的差别使得Mn-F比Mn-O具有更强的离子性,F取代O也增强了材料的化学稳定性。

To factor a polynomial of degree n over Fq, the number of arithmetic operations in Fg isO(n1.8010111405662083logq) or On2+o(1 +n1+o(1) log q or On (1,3/4,3/4+ n1+o(1) logq, of which the first one is less by 0. 00433886 than the previous record.

具体地说,为了分解有限域F~q上一个次数为n的多项式,该算法的时间开销为 On~(1.8010111405662083logq或On~(2+o(1)+n~1+o(1logq或On~(ω(1,3/4,3/4)+n~I+o(1logq个F_q中算术运算,其中第一个开销的指数比已知的最好结果降低了

The people who started the company named it Google because in mathematics, googol, spelled g-o-o-g-o-l, is an extremely large number. It is the number one followed by one-hundred zeros.

创办 Google 公司的人之所以叫它 Google,是因为在数学中 googol ,拼写为 g-o-o-g-o-l ,表示一个非常大的数字,即1后面跟一百个零。

By use of the Fischer-Tropsch reaction in a C-H-O system, we discussed the relationships between inorganic CO〓 and some physical chemistry conditions, such as Oxygen flee degree , temperature, pressure, other objects consistency and catalyzer. a when T=200K~2000K, if f〓>0, the reaction of generating CO〓 will be dominant, CH〓 hardily exists; b when T>1000K, CH〓 is not propitious to exist, carbon in system almost exists in form of CO〓; c the more pressure, the more CO〓 is propitious to exist; d the more consistency of CO, O〓 and H〓O, the more CO〓 is propitious to exist, the more consistency of H〓, the more CH〓 is propitious to exist.

依据C-H-O体系费托反应的简化模型,讨论了氧逸度、温度、压强、其它物质浓度、催化剂等物理化学条件对无机成因CO〓生成的影响,从理论上讨论了在地质环境中,无机成因CO〓存在的物理化学条件:1在T=200K~2000K的温度范围内,体系中一旦氧逸度>0,生成CO〓的反应将占绝对优势,CH〓几乎不可能存在;2T>1000K时,不利于CH〓形成,使体系中的碳主要以CO〓的形式存在;3体系压强越大,越有利于CO〓的形成;4反应物CO、O〓、H〓O的浓度越高,越有利与CO〓的存在,H〓的浓度高有利于CH〓的形成。5地质成藏作用可以经历很长的地质年代,这足以补偿矿物岩石中的Ni、Mo、Fe、Co、Ru等催化性能的降低及其它动力学条件的不足,使得费托反应可能发生,从而生成无机成因的CO〓和烃类。

It was found that some main structural factors influencing the RI of organophosphates are 7 substructures such as =CH2,≡C—, aaC—(where "a" refers to a chemical bond in the aromatic ring),=O, O, Cl and Br, which were related to the molecular skeleton of organophosphates, substituent groups on phenyl ring, and alkyls binding to the bond of P—O.

结果表明,影响不同固定相上OP色谱保留的主要结构因素都是由7个ETSI描述子对应的子结构碎片,即:=CH2,≡C—, aaC—,=O,—O—, Cl和Br。其中子结构aaC—,=O和—O与OP化合物母体骨架密切相关,而=CH2,≡C—,—Cl和—Br反映支链或取代基的变化。

The composite membranes with different ratio of Al〓O〓 to SiO〓 are composed of amorphous matter or amorphous matter and γ-Al〓O〓 when sintered at 600℃. The composite membrane with mullite composition go thrsought the following phase transition as the temperature rising from 200℃ to 1100℃: amorphous matter and boehmite (200℃)→amorphous matter and γ-Al〓O〓(4001000℃)→mullite and α-Al〓O〓.

经热处理后不同化学组成的复合陶瓷膜由无定形态或者无定形态和γ-Al〓O〓组成,具有莫来石化学成分的复合膜随着烧结温度的升高,其组成分别为无定形态和勃姆石(200℃)、无定形态和γ-Al〓O〓(400-1000℃),并在1100℃时析出莫来石和α-Al〓O〓。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。