精细结构常数实际上是其他几个能在任何物理学教科书中找到数值的物理常数合成，同它的名称稍微有些名不副实。

Slightly belying its name, the fine-structure constant is actually a compound of several other physical constants, whose values can found in any physics textbook.

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楔形式是有机分子立体结构表示方法之一，有机化学教科书中的书写方法不够清楚。

Wedge perspective formula is one of methods to expresses organic molecular formula 's stereoscopic construction, the means to write it in Chemistry textbook isn't very dearly.

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第四部分从完善知识结构、加强学法指导、开发图表效果、改进习题设计以及订正史事错误五个方面来阐述新历史教科书继续完善的问题。

Part IV set forth how to improve knowledge structure, strengthen learning means direction, develop picture's effection, improve exercises design and emend mistaken historical facts.

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