查询词典 2-butene

In this paper, the relationship between the linear complexity and the 2-adic complexity is investigated based on the Chinese Remainder Theorem and some other related theories in the number theory, and the existence of N-periodic sequences that simultaneously achieve the maximum 2-adic complexity and a great k-error 2-adic complexity is proved.

文中借助数论中的中国剩余定理等相关理论研究了二元序列的2-adic复杂度与线性复杂度的关系，证明了具有最大2-adic复杂度以及较大k错2-adic复杂度的N周期序列的存在性，给出了具有这种性质的周期序列的数目的下界。

In chapterⅡ, considering GLMMs data which the number of high units is different and the number of low units is small and unbalanced, we Conduct a series of simulations, the simulations show that regardless of the number of the level 2 units,the Bayesian estimate of random effects residual variance is more precise than PQL and the PQL estimation deviates from the true value seriously; In terms of the fixed effects estimates, When the number of level 2 units is 20, The mean and median of the Bayesian estimate is more precise than PQL,But With the number of level 2 units increase,the estimate of two methods is similar. Thus, in practical applications, we recommend the use of Bayesian method.

第二章针对不同高水平单位数，低水平数较小且不平衡的GLMMs数据，进行模拟研究，研究表明：无论水平2单位数的大小，贝叶斯方法随机效应残差方差估计值远比PQL法更接近真实值，PQL法严重偏离了真实值；而对固定效应参数估计值，当水平2单位数为20时，贝叶斯法各参数的均数和中位数均要较PQL法更接近真实值，而随着水平2单位数的增加，两种方法在估计固定效应参数时相差并不大，因而，在实际应用中，推荐采用贝叶斯法。

Inhibition to activated sludge process by 2-naphthol was also investigated by Warburg respirometer to verify the conclusion drawn from Rank Cell respirometer test. 2-Naphthol in low concentration was biodegradable, hence resulted in the acceleration of respiration, while in higher concentration 2-naphthol would dramatically inhibit microorganisms respiration on account of high K〓 and electron density.

用Warburg呼吸仪研究了2-萘酚对活性污泥过程的抑制作用，验证了RankCell呼吸仪的研究结论，发现低浓度下2-萘酚自身能被生物降解而使活性污泥中微生物呼吸速率升高；浓度增加后2-萘酚因良好的脂溶性和强亲核能力而对活性污泥过程产生强抑制。

Tax: China's tax revenue rose 18.8% YoY to RMB5.42tn in 2008 according to MOF , vs. 2007's 33.7%. 1 Value-added, corporate income and business tax revenues rose 16.3%, 27.3% and 15.9% respectively, which together contributed about 70% of the increased revenue. 2 Stamp duty for stock transactions was the only tax that saw YoY drop (-51.2% YoY ). 3 2008 saw 1H08 tax revenue growth at 33.5% YoY , relatively flat from 2007; but 2H08 growth was a mere 3.2%, lower than GDP growth in the same period.

税收：据财政部透露，08年中国税入达到5.42万亿元，同比增长18.8％，07年同比增长为33.7％。1）增值税、企业收入税和营业税分别增长16.3％、27.3％和15.9％，三项税入贡献了总增长的70％。2）股票交易印花税是唯一下跌的税入（同比下跌51.2％）。3）08年上半年税收同比增长33.5％，与07年基本持平，但08年下半年税收增长仅为3.2％，低于同期 GDP 增长。

To produce the scientific evidence for developing and manufacturing new antitumor drugs.Methods: 1 The inhibitory effect on cell growth of Hela was measured by MTT assay in treated or untreated groups (3.125, 6.25, 12.5, 25, 50μg/ml TAM and control) for three different treatment times (24h, 48h and 72h).2 Apoptosis and cell cycle were measured by FCM in four experimental groups (0, 4, 16, 40μg/ml TAM) for 48h.3 Adopting Wright and Giemse's staining to observe the morphology of Hela cells which treated with 40μg/ml TAM.4 Using invasion experiment to detect the Hela cells'invasive abilities which treated with 40μg/ml TAM.5 The protein expressional levels of P-ERK, ERK, C-myc and Cyclin D1 in Hela cells untreated or treated with 4, 16, 40μg/ml TAM for 24h were measured by Western blot.6 Expression of anti-apoptotic gene bcl-2, apoptotic gene bax and MMP-9 in Hela cells of four experimental groups (0, 4, 16, 40μg/ml TAM for 24h), were observed by revers transcription PCR.7 The protein expression of P-ERK, ERK, Bcl-2 and Bax in Hela cells treated with 40μg/ml TAM for 24h observed by laser scanning microscopes.

1采用四甲基偶氮唑蓝法检测不同浓度北豆根总碱(3.125、6.25、12.5、25、50μg/ml)处理不同时间(24、48和72小时)对Hela细胞增殖反应的抑制作用。2采用流式细胞技术(flow cytometry，FCM)检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用48小时，对Hela细胞凋亡及周期变化的影响。3瑞氏-姬姆萨染色后显微镜观察北豆根总碱(0、40μg/ml)作用24小时后Hela细胞形态学变化。4采用Transwell小室法检测北豆根总碱(0、40μg/ml)作用24小时后对Hela细胞侵袭性的影响。5采用免疫印迹方法检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用24小时后，Hela细胞中磷酸化ERK、ERK、C-myc、CyclinD1的表达变化。6采用逆转录-聚合酶链反应(revers transcription PCR，RT-PCR)半定量检测北豆根总碱(0、4、16、40μg/ml)作用24小时，Hela细胞抗凋亡基因bcl-2、促凋亡基因bax、基质金属蛋白酶-9(MMP-9)的表达变化。7应用激光共聚焦显微镜(laser scanning microscope，LSM)观察北豆根总碱(0、40μg/ml)作用24小时后，Hela细胞内P-ERK、ERK、Bcl-2、Bax蛋白的表达变化。

The invention provides the flux-cored wire for welding the duplex stainless steel, 17 percent to 24 percent flux-cored powder is filled into stainless steel belt. The invention is characterized in that the mass percent of the components of the flux-cored is as follows: 35 percent to 40 percent of chromium powder, 11 percent to 15 percent of molybdenum powder, 2 percent to 4 percent of nickel powder, 3 percent to 5 percent of manganese powder, 1 percent to 5 percent of magnesia chrome, 1 percent to 3 percent of ferrosilicon, 4 percent to 9 percent of rock crystal, 2 percent to 6 percent of feldspar, 21 percent to 30 percent of rutile, 0.5 percent to 4 percent of Al2O3, 0 percent to 5 percent of zircon, 0.5 percent to 3 percent of Bi2O3, and 0.5 percent to 3 percent of manganese nitride.

一种用于焊接双相不锈钢的药芯焊丝，将药芯粉末以17～24％填充在不锈钢带内，其特征在于，所述的药芯质量百分比成分如下：35～40％的金属铬粉，11～15％的金属钼粉，2～4％的金属镍粉，3～5％的金属锰粉，1～5％的铝镁合金，1～3％的硅铁，4～9％的石英，2～6％的长石，21～30％的金红石，0.5～4％的Al 2 O 3 ，0～5％的锆英石，0.5～3％的Bi 2 O 3 ，0.5～3％的氮化锰。

The results from the experiment of linear guidance showed that an combination of four parameters "rud","ctr","yau", and "trn" of (2,2,2,7) was a good choice, with an average path deviation of 1.247m. The results from the experiment on waypoint guidance by satellite showed that the first route, from waypoint A to waypoint B, had a good state, with an average path deviation of 1.188m.

测试结果发现：直线导航的较佳状况是rud、ctr、yau和trn四个参数分别为(2，2，2，7)，此时的平均偏移量为1.247公尺；而在卫星导航中，较佳情形则是A、B航点间的第一段路线，平均偏移量仅1.188公尺。

Among them flowers and plants of head shape column (flowers and plants of column of Capitata), horse segment of a circle (flowers and plants of column of Fine Stem), Mineirao and CIAT1517 column flowers and plants (CIAT1517) belongs to phosphor small effect is not sensitive model; heat grinds 2 column flowers and plants (Reyan2), heat grinds 5 column flowers and plants (Reyan5), flowers and plants of column having a check mark (flowers and plants of column of Verano), bush and TPRC2001-2 column flowers and plants (TPRC2001-2) performance is not steady.

其中头状柱花草、马弓形柱花草、Mineirao柱花草和CIAT1517柱花草(CIAT1517)属于磷低效不敏感型；热研2号柱花草(Reyan2)、热研5号柱花草(Reyan5)、GC1581柱花草(GC1581)和TPRC2001-1柱花草(TPRC2001-1)属于磷高效敏感型；西卡柱花草属于磷高效不敏感型，有钩柱花草、灌木柱花草和TPRC2001-2柱花草(TPRC2001-2)表现不稳定。

Ninteen cases of posterior semicircular canal BPPV were treated with otolith reposition.Reexamined after 2 weeks,14 cases disappeared vertigo,2 cases had no positional vertigo but they were dizzy,2 cases improved the syndromes,1 case had no effeciency.

内容提要用Epley首创的耳石复位法治疗后半规管性良性阵发性体位性眩晕。2周后复查，结果显示，眩晕消失14例，无体位性眩晕，但有头昏2例，眩晕症状改善2例，无效1例。

Expression of MMP-2 and TIMP-2 was examined by immunohistochemical technique and scored semiquantitatively(score 0-3) in carcinoma cells, and the results were correlated with clinicopathological tumor parameters.

我们通过免疫组织化学染色观察人胰腺癌组织MMP-2和TIMP-2的表达情况及其与侵袭转移的关系，旨在探讨MMP-2和TIMP-2表达对胰腺癌患者预后的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。