Zettl把碳管嵌入了一堆不对称的重分子中。
Zettl embedded the tubes in an asymmetric pile of heavy molecules.
然而，不对称形态发生的细胞和分子基础基本上仍然是不清楚的。
However, the cellular and molecular basis of asymmetric morpho - genesis remains largely unknown.
糖作为一类具有多官能团、多手性中心、廉价易得的手性小分子可以很方便地作为手性助剂用于不对称合成。
Carbohydrate, with multi-functional groups and chiral centers in one small molecule, is inexpensive and can be converted into efficient chiral auxiliary for controlling asymmetric synthesis.
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