... directed diffusion 定向扩散 directional bond 定向键 directional coupler 定向耦合器 ...
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four-and six-directional ether-bond branched compounds 四方向及六方向醚键型分枝状化合物
New organic molecules the three directional ether bond branched compounds were designed and synthesized.
报道新型有机分子——三方向醚键型分枝状化合物的合成。
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