大多数螺旋形的蜗牛主要是右旋的。
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.
此外，左旋和右旋蜗牛可能无法交配，因为它们的扭曲方向不相容。
In addition, perhaps left and right-handed snails cannot mate with each other, having incompatible twist directions.
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，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.
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.
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.
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.
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.
甲基苯丙胺以右旋和左旋两种对映体形式存在。
Methamphetamine exists as two enantiomers, dextrorotary and levorotary.
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.
本船是单螺旋桨，右旋，固定螺距。
请问我需要立刻打右旋糖肝铁吗？
将螺丝钉向右旋转拧紧它。
突然地你感觉下降率增加且这伞向右旋转。
Suddenly you feel your sink rate increase and the canopy spins to the right.
目的研究高渗氯化钠右旋糖酐70注射液的稳定性。
OBJECTIVE to study the stability of hypertonic sodium chloride dextran 70 injection.
螺旋桨是右旋。
目的：考察右旋布洛芬缓释胶囊的初步稳定性考察。
Objective: The stability test of modified release capsule of Dex-ibuprofen.
目的研究右旋糖酐40对注射用阿昔洛韦检验的影响。
Objective To study the influence of dextran 40 on the analysis of acyclovir for injection.
对照组静点低分子右旋糖苷，口服安慰剂胶囊(淀粉)。
Patients in the control group were treated with low molecular dextran and placebo (made with starch).
左右旋转双版转换曝光，适用于大量且精细的晒版工作。
Rotating around double exposure version converter, which is suitable in massive and fine exposes.
像其他许多分子一样，氟比洛芬酯具有左旋和右旋两种形式。
Like many other molecules, flurbiprofen has a left-handed and a right-handed form.
必须要确保，如果做右旋，顶端节点必须有一个左子节点。
You must be sure that, if you're doing a right rotation, the top node has a left child.
目的建立适用于纳米铁包合物中铁及右旋糖酐含量测定的方法。
Objective to establish an optimal method to determine the contents of Fe and dextran in the nanometer iron compound.
目的制备高渗氯化钠右旋糖酐70注射液，建立其质量控制标准。
OBJECTIVE to prepare hypertonic sodium chloride dextran 70 injection and establish its standard for quality control.
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.
样品经酸水解，测得右旋糖酐铁中右旋糖酐的重均分子量和分子量分布。
The average molecular weight and molecular weight distribution were determined with acid hydrolyzed iron dextran samples.
目的：探讨改良低钾右旋糖酐（LPD）溶液在心肺移植术中的肺保护作用。
Objective To determine the application of modified low-potassium dextran (LPD) solution in heart-lung transplantation.
如果您向右旋转90度，然后走两步，这时您所处的位置显然与先走两步再转身不同。
If you turn 90 degrees to the right and walk two steps, you end up in a different position than if you first walked two steps and then turned.
如果您向右旋转90度，然后走两步，这时您所处的位置显然与先走两步再转身不同。
If you turn 90 degrees to the right and walk two steps, you end up in a different position than if you first walked two steps and then turned.
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