1. 众所共知，缓和曲线是铁路上最常使的重要曲线；但其公式来源怎样从理论上正确地推导，并不为一般人所掌握。因此一些书刊中所载的公式，常出现讹错，无法查证。
Two parts are discussed: The first part denotes the arithmetic process to obtain the basic formulas of the railway transition curves and also shows some incorrect formulas which have appeared in some textbooks.
2. 可是，由于《墨经》文体特殊、内容深奥、文字讹错多，又因研究者的种种局限，墨经逻辑研究还存在某些缺陷和不足。
Nevertheless, as a result ofthe particular style, profound content, many wrong words in Mo-jing text, andall sorts of limitations to researchers, there are a few defeats and lacks in thestudy of Mo-jing logic.