您要查找的是不是：
- sealed double glazing unit 封闭的双层玻璃窗
- double glazing unit 双层中空玻璃
- The salesman said it would make all the difference to our heating bills if we installed double glazing. 那推销员说，如果我们安装双层玻璃窗的话，我们的暖气帐单就会完全不一样了。
- Double glazing is often a good selling-point for houses. 镶有双层玻璃门窗的房子往往好出售。
- Double glazing is often a good selling-pointfor houses. 镶有双层玻璃门窗的房子往往好出售。
- You should ensure against loss of heat by having double glazing. 你应装双层玻璃以免散热。
- You should insure against loss of heat by having double glazing. 你应装双层玻璃以免散热。
- Coming back now to the double glazing I mentioned before. 回到我前面提到的镶嵌双层玻璃。
- Installing double glazing can cut heat loss through windows by half. 安装双层玻璃窗可以减少一半的热量流失。
- You should ensure yourselves against loss of heat by having double glazing. 你应该使用双层玻璃以免热量损失。
- You should ensure against yourself loss of heat by having double glazing. 你应装双层玻璃以防止散热。
- The outer door is a polyurethane foamy one with a glazing unit observation window, for better perspectivity and heat preservation. 外门为聚氨脂发泡门，中空玻璃观察窗，透视性好，保温性能好。
- You should ensure yourself against loss of heat by having double glazing. 你应装置双重玻璃以免散热。
- Z, BT two series of 6 offset press, where BT640BCL-belt glazing unit off six-color offset printing machine is the new product introduced this year. BT两大系列的6台胶印机，其中BT640BCL型带上光单元对开六色胶印机是今年推出的新款产品。
- You should ensure against yourself loss of heat by having double glazing . 你应装双层玻璃以防止散热。
- There is a machine optional roller and the cavity of the glazing unit with scraper, the use and dispersancy finish processing product finishing. 机械可选购有网纹辊和腔体刮刀的上平机组，该机组搁置分散性上平油差产物举行零饰加工。
- The house is double glazed back and front. 这房子前後窗都是双层的.
- Using a double glazing windows can help you to save a lot of money on your heating bills. 使用双层玻璃可以节省大笔暖气费用。
- Photometry. Depending on different feature of glass sheets which compound the insulated glazing unit, the transmitting rating of visible lights is within 10-80% and the reflectivity is 13-35%. 光学性：根据组合玻璃原片性能的不同，一般可见光透过率范围为10-80%25，反射率为13-35%25。
- Specialised double glazing requires a larger air gap between the inner and outer glass than normal double glazing. 镶嵌双层特别的玻璃在内外玻璃间比普通双层玻璃间需要一个较大的空气间隙。
