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- Whether the metal grid supporting the acoustic units is concealed or exposed and numerous other conditions. 支承隔音材料的金属格棚是采用隐蔽式还是裸露式以及其他许多别的问题。
- The fluid is isotropic: it looks the same in every direction.The experimenter then forces the fluid to pass through a metal grid at a certain speed. 静止的液体具有均向性，也就是各个方向的运动速率都相同，接著实验者迫使液体以一定速率通过金属格栅。
- We often use multilevel drawbench.It is very compatible that the multilevel drawbench draws the different intension coefficient double metal. 同时,多级拉丝系统在拉拔抗拉强度系数不同的双金属丝时,也非常适用。
- The content of Fe and Zn of the double metal catalyst for the preparation of polyether were measured by using complex titration analysis method. 研究了用配位滴定分析方法测定聚醚多元醇用双金属催化剂中锌、铁含量的方法。
- The material and technology of manufacture of screw slag removre of double metal high Cr castiron and carbon steel have been investigated. 研究了制造高铬铸铁碳钢双金属复合排渣器的材料与工艺。
- Polyether polyols with high mlecular weigh, marrow molecular distribution and low monolwere prepared by using a double metal cyanide catalyst. 使用双金属氰化物络合催化剂，制备了分子量高、分子量分布窄、不饱和度低的低单官能度聚醚多元醇。
- In double metal cladding waveguides, the separation and degeneration of TM 0 and TM 1 modes will appear as the thickness of guiding layer increases, this may confuse the judgement of mode orders in attenuated total reflection (ATR) spectrum. 在双面金属包覆介质波导中 ,随着介质层厚度的变化 ,会出现TM0 模与TM1 模的分离和简并两种状态 ,从而影响衰减全反射 (ATR)谱中模序数的确认。
- The experiment results show that under reaction temperature 80 C and reaction pressure 3.0 MPa, the reaction conversion is nearly 100% and the yield is beyond 90.0% with Ni-Co/C double metal supported catalyst. 实验表明，在温度110℃，压力3.;0MPa下，采用Ni-Co/C催化剂进行的加氢催化反应，原料转化率近于100%25，产物收率在90%25以上。
- The polyether polyols which has higher molecular weight,narrower molecular weight distribution and lower unsaturation can be prepared by using double metal cyanide (DMC) complex catalysts. 用双金属氰化物(DMC)络合催化剂可制得相对分子质量高、相对分子质量分布窄和不饱和度低的聚醚多元醇。
- Remember that you can use alpha-masked quads for fences or metallic grids. 记住，你可以使用透明遮罩四边形（alpha-maskedquads）制作护栏或金属格子。
- Poly (propylene carbonate) polyols was synthesized by the copolymerization of carbon dioxide with propylene oxide in the presence of double metallic catalyst in loop reactor. 摘要以二氧化碳3环氧丙烷为原材料，在双金属氰化物催化剂催化下，利用环流反应器合成聚碳酸亚丙酯多元醇。
- Far Infrared Properties of Metallic Grid 金属栅网的远红外光学特性
- Forming and Inspection of Double Metal Lining 双金属衬套的成形与检测
- double metal cyanide complex catalyst 双金属氰化络合物催化剂
- double metal cyanide complex catalysts 双金属氰化物催化剂
- 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。
