到1973年，这一差距已缩小到几乎为零。By 1973, this gap had narrowed almost to vanishing point.利润从1981年的零收益飙升至去年的1,600万。Profits zoomed from nil in 1981 to about 16 million last year.当他推开门时，一口旧式的钟丁零零地响了起来。An old-fashioned bell tinkled as h...
The integrated guidance autopilot model of the yaw plane is formulated firstly.提出了一种反舰导弹针对水面机动目标的航向平面控制导引一体化设计方案.a highly integrated approach to planning高度协调的制订计划方法The aim paper is to lay foundation of the ferroelectrics...
要了解这些产品的详细信息，请寄来标明HB/FF字样的明信片。For more details about these products, send a postcard marked HB/FF.它是包装盒标明的成分之一。It is listed among the ingredients on the package.别折书页的角来标明你读到的地方.Don't turn back the corners of the pag...
It is wise to start infilling with a layer of gravel for drainage.先铺上一层利于排水的砾石是个明智的做法。This method provides evidence for the feasibility of pattern infilling.实例计算和对比论证表明,该方法合理实用.The subsidence mechanism, infilling sequenc...