常见例句A principle of floor heave controlling is controlling is pro-Posed, which has been verified in Maoming Mine.Formulae for evaluating rodway floor heave are de-rived... 并根据底臌变形过程提出了防治底胶的基本原则，这些原则在治理茂名软岩巷道底臌中得到证实。 返回 Rodway