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A wide variety of natural products, e. g. alkaloids, β-lactames, biotin, amino sugars has been synthesized by 1, 3-dipolar cycloaddition reaction between nitrones and alkenes.
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摘要通过硝酮与烯烃化合物的1,3-偶极环加成反应合成了许多天然産物,如生物硷、β-内酰胺、生物素、氨基糖等。 |
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A wide vertical band in the center of an escutcheon .
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古代的士兵用饰有花纹的盾作战。 |
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A wide vertical band in the center of an escutcheon.
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垂直宽条在一个饰有纹章的盾的中心部分的一条较广的垂直嵌条 |
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A widely adopted practice is an inclined round submerged discharge at the seabed, with an inclination angle of 60o to the horizontal to optimize the mixing efficiency.
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目前实践中广泛采用的型式是圆形倾斜淹没式排放,而之前的研究建议倾角设计与水平方向成60。 |
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A widely known achievement of radio electronics is an electronic calculating machine that can perform several thousand arithmetical operations in one second.
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电子计算机是无线电电子学的一项人所共知的成就,这种计算机一秒钟能进行数千次运算。 |
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A widely known achievement of radio electronics is electronic calculating machine that can perform several thousand arithmetical operations in one second.
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无线电子学的一项最广为人知的成就是电子计算机。电子计算机能够在一秒钟运算数千次算算术。 |
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A widely watched index from the Institute for Supply Management showed manufacturing was unexpectedly strong in April.
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而另一个被广泛关注的指数则来自供给管理协会,它现实了制造业在四月的表现超过预期。 |
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A widening in a highway to allow vehicles to pass or park.
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避车道,停车道高速分路上可以错车或停的宽大空间 |
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A wider stomatal aperture of rice variety proved to be a desirable agronomic character for high yielding.
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已证明气孔较大的水稻品种是理想的高产农学性状。 |
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A wife can have property independent of her husband.
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妻子可以拥有不受丈夫支配的财产。 |
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A wife is bound for so long a time as her husband lives; but should the husband fall asleep, she is free to be married to whom she wishes, only to one in the Lord.
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39丈夫活着的时候,妻子是被束缚的;丈夫若睡了,妻子就可以自由,随愿嫁人,只是要嫁在主里的人。 |