在任何时候，你都能判断谁是正电性的。

So, at any moment, you know in any bond which is the more electropositive.

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并根据井冈霉素分子中仲胺基在碱性介质中显正电性的特点，设计了一步法提取井冈霉素的工艺路线。

According to the positive electrical property of imino group in Validamycins molecular in alkaline media, a one-step technology of extraction Validamycin was proposed.

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研究者发掘出生成更高质量的晶状半导体精密方法，以减少电子或者正电穴由于杂质而受阻的可能性。

Researchers developed sophisticated methods to grow high-quality semiconductor crystals, reducing the likelihood that electrons or holes will become trapped by defects.

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So, at any moment, you know in any bond which is the more electropositive.

在任何时候，你都能判断谁是正电性的。

麻省理工公开课 - 固态化学导论课程节选

Electropositive is down to the left because that is where the metals live.

带正电性的元素常,在左边因为那里是金属区。

麻省理工公开课 - 固态化学导论课程节选