在法国拉斯科洞穴中发现了冰河时代晚期的绳索，这条绳索由向右旋转的纤维捆成，因此它是由右撇子编成的。
The late Ice Age rope found in the French cave of Lascaux consists of fibers spiraling to the right, and was therefore tressed by a righthander.
在锥实螺的例子中，研究表明右旋基因是在卵的形成期表达的。
In the case of Lymnaea peregra, studies indicate that a dextral gene is expressed during egg formation.
这种结合不对称、解剖学和偶然性的进化论机制并未提供一种充分的解释，以说明蜗牛的右旋何以会成为主要的旋向。
This evolutionary mechanism combining dissymmetry, anatomy, and chance does not provide an adequate explanation of why right-handedness should have become predominant.
大多数螺旋形的蜗牛主要是右旋的。
如果发现了氨基酸，并且它们普遍表现出同一种偏向性——要么像地球上的氨基酸一样是左旋的，要么是右旋的，那将会格外有趣。
If amino acids are found, it would be especially interesting if they show a prevalence of one type of handedness, either left, like amino acids on Earth, or right.
然而，一些卵壳中会出现反向螺旋的蜗牛，多数情况下是在左旋卵壳中，右旋的出生率惊人地高。
However, some broods possess a few snails of the opposing hand, and in predominantly sinistral broods, the incidence of dextrality is surprisingly high.
在实验中，用取自右旋卵子的细胞质进行的注射，可改变左旋卵子的模式；用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。
In experiments, an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs, but an injection from sinistral eggs does not influence dextral eggs.
在实验中，右旋卵子的细胞质注射改变了左旋卵子的形态，但是左旋卵子的细胞质注射不会影响到右旋卵子。
In experiments, an injection of cytoplasm from dextral eggs changes the pattern of sinisterly eggs, but an injection from sinisterly eggs does not influence dextral eggs.
要研究发酵的黑麦麸是否能保护接受右旋糖酐硫酸钠（DSS）的模型小鼠免于结肠炎。
To investigate whether the fermented rye bran can protect the model mice receiving dextran sulfate sodium (DSS) from colitis.
构成生命体的许多关键分子都有一个特定的导向，或者说是旋向性：脱氧核糖核酸右旋，氨基酸左旋。
Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left.
在生物化学中，手性是有意义的，如左旋和右旋的物质气味可能不同。
In biochemistry, handedness can matter. Left - and right-handed versions may, for example, smell different.
低血浆浓度和高血浆浓度的右旋美托嘧啶对于健康男性心肌患者心肌灌注和心功能的作用。
CME Effects of Low and High Plasma Concentrations of Dexmedetomidine on Myocardial Perfusion and Cardiac Function in Healthy Male Subjects.
然而现在已经变为右旋占多数的蜗牛种类，其旋向性（壳的螺旋方向）一度也曾均衡分布，在某些种类中，甚至左旋曾占优势。 。
Butt at one time, handedness (twist direction of the shell) was equally distributed within some snail species that have become predominantly dextral or, in a few species, predominantly sinistral.
这些公式包容了传感器内的各种光学元件对双频左、右旋圆偏振激光束的相位延迟和偏振态改变。
These formulas cover all informations of phase delay and change of polarization states for these beams caused by all optical elements in the sensing system.
目的：研究体外循环早期单次肺动脉灌注含左旋精氨酸的低钾右旋糖酐液对肺的保护作用。
Objective: To research the protection of pulmonary artery single perfusion with low potassium dextran (LPD) contains L-Arginine at earlier period of cardiopulmonary bypass (CPB).
右旋糖一种由右旋糖，麦芽糖和糊精混合而成的无色或淡黄色糖浆，含20％的水，用于制糖、酒精发酵、制革和制烟草。
A colorless to yellowish syrupy mixture of dextrose, maltose, and dextrins containing about20 percent water, used in confectionery, alcoholic fermentation, tanning, and treating tobacco.
结论：本方法可以实现奥硝唑的手性分离，并能应用于左旋奥硝唑原料药中的右旋体杂质的控制。
Conclusion: The method can be used for separating the enantiomers of Ornidazole and controlling of the impurity of dextroisomer in S-Ornidazole substances.
研究认为，北北东向反向正断层的形成受北东—南西向张应力及右旋剪切力控制，反向正断层的走向与张应力方向基本垂直；
This study shows that the formation of antithetic normal fault is controlled by NE WS strike tensile stress and dextral shear stress and the strike is nearly vertical to the tensile stress.
目的：探讨低分子右旋糖酐对急性胰腺炎大鼠胰腺微区血流的影响及其对胰腺炎的治疗作用。
Objective:To investigate the influence of low molecular weight dextran on pancreatic microflow in acute pancreatitis in rats and its therapeutic effect on pancreatitis.
它的分子结构中有一手性碳原子，大量研究结果证明其左旋光学异构体的生理活性比右旋异构体要高很多。
There is a chiral carbon atom in the EAMP's molecule and it has been proved that the S-EAMP has higher biological activity than that of the D-EAMP.
右旋的软体动物的螺形外壳上的螺线顺时针螺旋即顶点向上，面对观察者时，螺线向。
Of or relating to a gastropod shell that coils clockwise and has its aperture to the right when facing the observer with the apex upward.
汶川地震的主震发生在具有右旋性质的仰冲型断层带上，震源深度为15公里左右。
The main shock occurred on the dextral obduction-type fault zone and the hypocenter depth was about 15km .
其中的右旋龙脑是许多贵重的中成药如“云南白药”、“六神丸”、“喉风散”等的重要成分。
D-borneol in which many valuable proprietary Chinese medicines, such as "Yunnan Baiyao", "Liushen", "Houfengsan" and other important elements.
本文介绍了二氯苯醚菊酯、富右旋丙烯菊酯和胺菊酯混剂对家蝇的毒力测定方法 ，复配杀虫剂的原理与方法。
This article describes the experiment of the toxicity testing for the mixture of Permethrin? D trans allethrin, and Tetramethrin on, and explained the theory and method for mixture of drug.
结论：静脉注射右旋糖酐氢氧化铁可有效纠正维持性血透患者的铁缺乏、提高铁利用率及重组红细胞生成素的治疗效果。
Conclusion:Intravenous therapy with iron dextran injection can quickly improve anemia in patients with hemodialysis, raise iron availability and therapeutic efficacy of rHuEPO.
它们的演化受左旋挤压、右旋拉张两种应力场的转换控制。
Their evolution has been alternatively controlled by two kinds of stress field-left lateral compression, right lateral tension.
证明这种极化光的左右偏振耦合效应导致在介质中传播的左右旋光具有频率移动效应。
It is shown that this left right coupling gives rise to the frequency shifts of both left and right handed polarized light propagating inside the biaxially gyrotropic left handed media.
济阳运动的成因，与郯庐断裂从左旋转向右旋的活动密切相关。
The origin of the Jiyang movement is closely related to the transformation of the Tanlu Fault Belt from sinistral to dextral movements.
济阳运动的成因，与郯庐断裂从左旋转向右旋的活动密切相关。
The origin of the Jiyang movement is closely related to the transformation of the Tanlu Fault Belt from sinistral to dextral movements.
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