大量使用的

The paper analyzes the causes of seepage of asphalt felt roofage and puts forward the repairing ways on partial damage of waterproof roofage.

传统使用的沥青油毡屋面目前仍大,由于受自然环境的长期侵蚀及其它因素的影响,防水层经常发生局部损坏而造成渗漏。

A lot of studies showed that resynthesis of phosphocreatine in muscle can be increased and strength and speed of athletes can be improved through creatine supplementation.

国外大有关酸的文献认为,运动人体使用酸使运动后磷酸酸的再合成速度加快,力和速度增强。

The third of the fencing weapons, the saber, wasintroduced into Europe in the late 18th century as an ad-aptation of the Turkish scimitar, used by the Hungariancavalry.

击剑武器的第三种——佩剑——于18世纪末传人欧洲，它的前身是土耳其弯刀，当时为骑兵使用。由于这种剑的杀伤力非常大，其他国家的部队也开始大使用此种武器。