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A plasma electron density profile in the HT-6M tokamak is obtained when an asymmetric Abel-inversion which depends on plasma shifts is applied to the signals of multichord interferometric measurement.

一种常用的非对称Abel变换是分离变量法,它的基本思想是把测量信号分成对称元和非对称的权函数,对称部分采用标准的Abel变换,变换的结果乘上非对称的权函数。

From the angle of sound shift, chain shifts may lead to cycle. For example, the study result on phonetic change of Ningpo dialect by Mr.

比如徐通锵先生(1985)对百年来宁波方言语音变化的研究显示,宁波方言部分蟹摄一等字由复元音到单元音再到复元音的演变过程就是一种推链造成的循环。

Since 18th century,there has been three great shifts in Tujia Nationality′s dwelling,drinking and eating culture:the replacement of hereditary local chieftains with nonhereditary appointees from the central government;the establishment of the P.R.C;reform and opening to the outside world.

18世纪以来,土家族的居住饮食文化有三次大变迁:改土归流;新中国建立;改革开放。变迁中起作用的主要因素有 7个:( 1)输入新的文化因子。

Quantum mechanics breaks though the mechanical determinism in classical science, transforming it into nonmechanical determinism; it changes scientific cognitive process from the theory of reductionism to the theory of wholism; it shifts the way of thinking from pursuing simplicity to exploring the complexity; it also establishes the interaction between subject and object in scientific researches.

量子力学突破了经典科学的机械决定论,使之转化为非机械决定论;使得科学认识方法由还原论转化为整体论;使得科学思维方式由追求简单性到探索复杂性;确立了科学活动中主客体互动关系。

The results showed that the 16S rDNA copies of Bacteroides spp. decreased in rotavirus-infected children by 2 orders of magnitudes. 665 clones in Group H and 284 clones in Group R were sequenced and 34 OTUs were obtained according to 98% sequence homology. Partial least squares discriminant analysis of the clone library profiling data revealed significant structural shifts of gut microbiota.

利用偏最小二乘判别法(Partial least squares discriminant analysis,PLS-DA)对这34个OTU进行分析,结果表明轮状病毒感染导致肠道内拟杆菌组成结构发生了变化,通过拟杆菌的组成可以将健康个体与轮状病毒感染个体分开,而对于区分两组个体起关键作用的OTU分别与Bacteroides vulgatus ,Bacteroides stercoris和Bacteroides fragilis有很高的同源性。

In order to check the corresponding compound at 31P NMR –45.4 ppm, stable pentacoordinate spirobicyclic 2-phenoxy-1,3-phenylene-dioxo-1,3,2-iminoacetoxyphosphoranes were synthesized through a new and efficient method whereby phosphorus pentachloride was displaced stepwise by catechol, N,O-bisamino acid and phenol, or catechol, phenol and N,O-bisamino acid, their 31P NMR chemical shifts are at about 31P NMR –45.0 ppm, the results showed that the compound 4 at 31P NMR –45.4 ppm was pentacoordinate phosphorane containing amino acid residue.

采用磷谱跟踪来研究上述成肽反应机理。例如在氮气保护下,0.1mmol O,O-亚苯基磷酰氯(1)和0.15mmol N,O-二苯丙氨酸(2)苯溶液加入0.6ml核磁管中,混合均匀,反应过程用磷谱检测。反应1分钟后,起始原料1(δp=19ppm)很快转变成N-磷酰苯丙氨酸的三甲基硅基酯(3)(δp=19.8ppm),在8分钟内,3完全转变成苯丙氨酸磷烷4(δp =-45.4ppm),同时出现环磷三酯(6)(δp=3.5ppm)。随着反应的进行,对应于化合物4的峰逐渐变小,而6逐渐变大。

The most commonly used complexes for this application are transition metal complexes especially ruthenium polypyridyl or phenanthroline complexes and metalloporphyrins owing to their high quantum yields, large Stokes shifts and long luminescent lifetimes.

这类传感器是基于氧气对所使用的发光分子激发态的猝灭行为而形成的。

In response to climate change, significant phenological shifts were found for about 14% of plants.

近40年来,约14%的引种植物物候期变化是由于受到植物园地方气候的影响,引种植物株高生长同样受到植物园地方气候的显著影响。

The vibrational spectra of two isotopic derivatives of γ-picolinic acid (-C^1^6O~2D,-C^1^8O~2H) have been predicted with the SQM force field resulting from the transferred scaling factors. The calculated isotopic shifts are in good agreement with experimental data.

用这组校正因子得到的力场预测了γ-吡啶甲酸的两个同位素衍生物(-C^1^8O~2H和-C^1^6O~2D)的振动光谱,所得同位素位移值与实验数据符合良好。

The scientists note that "the edges of the tropical belt are the outer boundaries of the subtropical dry zones and their poleward shift could lead to fundamental shifts in ecosystems and human settlements."

科学家们还注意到,&温暖带的边缘位于副热带干燥地区之外,并且两极的改变将导致人类居住区和整个生态系统的根本改变。&

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。