The sloped envelope indicates the development velocity of printing .
那个倾斜的信封显示了印刷的发展速度。
A measuring platform without a sloped position is unsuitable .
不带斜面位置的测量平台不适用。
Around the country , roof makers are racing to develop products in the hope of profiting as the movement spreads from the flat roofs of the country 's malls to the sloped roofs of its suburbs .
