推拉窗优点是简洁、美观,窗幅大,玻璃块大,视野开阔,采光率高,擦玻璃方便,使用灵活,安全可靠,使用寿命长,在一个平面内开启,占用空间少,安装纱窗方便等。采用最多的就是推拉窗。
The advantages of sliding window are simple and beautiful, large window 
width, large glass block, wide field of vision, high lighting rate, easy
 to clean glass, flexible use, safe and reliable, long service life, 
opening in a plane, occupying less space, convenient installation of 
screen window, etc. The most commonly used is the sliding window.
缺点:是两扇窗户不能同时打开,最多只能打开一半,通风性相对差一些;有时密封性也稍差。
Disadvantages: two windows can not be opened at the same time, can only 
open half at most, the ventilation is relatively poor; sometimes the 
sealing is also slightly poor.
推拉窗 :分左右、上下推拉两种。推拉窗有不占据室内空间的优点,外观美丽、价格经济、密封性较好。采用高档滑轨,轻轻一推,开启灵活。配上大块的玻璃,既增加室内的采光,又改善建筑物的整体形貌。窗扇的受力状态好、不易损坏,但通气面积受一定限制。
Sliding window: divided into left and right, up and down push-pull two 
kinds. Sliding window has the advantages of not occupying the interior 
space, beautiful appearance, economical price and good sealing 
performance. It adopts high-grade slide rail, which can be opened 
flexibly with a slight push. With large pieces of glass, not only 
increase the indoor lighting, but also improve the overall appearance of
 the building. The forced state of the window sash is good and not easy 
to be damaged, but the ventilation area is limited. 
			
			