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- The good effect has been gained on the hypereutectic Al Si alloys treated with some double refining and modifying agents such as P,S,RE,Sr,Na,C,etc. 采用磷、硫、稀土、锶、钠、碳等进行双重细化变质处理过共晶铝硅合金已取得了良好的效果。
- The ZDP series of double refiner machine is continuous beating pulp equipments for under low and consistency(2-5%)operation condition of various syrup,and can make various fine whet equipments. 描述：ZDP系列双盘磨浆机为低浓（2-5%25）操作条件下的多种浆料的连续打浆设备，并可作多种浆料纤维的精磨设备。
- The ZDP series of double refiner machine is continuous beating pulp equipments for under low and consistency(2-5%) operation condition of various syrup, and can make various fine whet equipments. 描述：ZDP系列双盘磨浆机为低浓（-5%25操作条件下的多种浆料的连续打浆设备，并可作多种浆料纤维的精磨设备。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
- Look, double yellow lines you mustn't park here. 喂，这是双黄线--不能在这儿停车。
- Please double up the chair and put it aside. 请把椅子折起来放在一边。
- For strong sewing use double, not single thread. 为了缝得牢，用双线，而不要用单线。
- Do you want a single room or a double room? 您要单人房还是双人房？
- Mary agreed to double the part of the dancer and the mother. 玛丽同意扮演舞女和母亲两个角色。
