直到1880年，英国才开始实行初等义务教育。Britain did not introduce compulsory primary education until 1880.对录像片内容实行了更为严格的监管。Stricter controls were placed on the content of video films.面包、大米和茶叶等日常必需品已实行配给。Staples such as bread, rice and tea...
At very high temperatures, more endothermic reactions play a role.在很高的温度下, 更多的吸热反应起作用.High temperatures also result in high evaporation from the plants.高温也导致了植物水分的大量蒸发。I clean out all the grease and replace it with oil s...
对于四波混频的研究主要是采用简并四波混频和非简并四波混频方法.The main method in searching four - wave mixing adopts DFWM and NDFWM.描述: 惠普安捷伦5364A是一种用于微波混频器检测器.Description: The HP Agilent 5364 A is a used Microwave Mixer Detector.用途: 用于高频放大, 调频 、 射频、混...
The failure is due to the inadequacy of preparations.这次失败是由于准备不足造成的.Construction will begin as soon as preparations are completed.一做好准备,就破土动工.Preparations were started last year for the construction of the university.这所大...
Most hurricanes occur before leaf drop and during or following heavy rains.大多数飓风出现在落叶以前,暴雨之时或暴雨之后.Severe storms and hurricanes are capable of completely distroying many well - developed submerging bars.强烈的暴风雨和飓风具有彻底摧毁许多发...