During the third month of pregnancy the sex of the child becomes determinable.孩子的性别在妊娠期第三个月便可查明。The determinable error in plate counting method is larger.平板计数法费时且误差较大.Then, Several typical ATC calculating methods on the ...
When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。Talent, hard work and sheer ten...
首次在空中航行的飞行器是气球.The first vehicles to navigate the air were balloons.大型飞行器的驾驶员是航空学方面的专家.Pilots of large aircraft are masters of aviation.他设计了一种新式飞行器.He contrived a new machine for flying....
Similar to human plasma, GPX activity did not elute with either peak butbetween them.与人的血浆一样, GPx也不从这二个硒峰中洗脱出来.Mining equipment of mineral products: Send, entangle and break to pieces, elute, press one, improve compositi...