| 释义 |
Fdn.
基本例句
🌏高效减水剂；固定拨号号码Fixed dialing number；萘系高效减水剂
High efficiency water reducing agent SMA- FDN was prepared by alkyl aryl sulphonate water reducing agent FDN which modified by SMA modifying agent.
用自制的 SMA改性剂对聚烷基芳基磺酸盐减水剂 FDN进行改性，研制出一种高效减水剂 SMA- FDN。 dictall
The design of FDN scheme and research of loading of digital map are given in this thesis, which have certain innovation merit and instructive meaning for engineering application.
本文完成了飞行力学导航方案的设计和数字地图加载的研究，具有一定的创新性和应用价值。 cnki
The principle of loading of digital map in the terrain auxiliary navigation is studied. It is concluded that FDN plays an auxiliary role in the process of loading of digital map.
研究了地形辅助导航中数字地图的加载原理及飞行力学导航法在数字地图加载过程中的辅助作用。 cnki
Using sodium hexametaphosphate, FDN and ADS as compound dispersants, the precast bricks bonded by aluminum- gel have good rheological behavior and high ratio of performance to price.
对于以铝凝胶为结合剂的铝镁体系选用六偏磷酸钠、 FDN和 ADS作复合分散剂，浇注料的流变性能比较理想，性价比较好。 fabiao
According to the problem existing in casting- mounting technology of electric porcelain insulation, the method of using FDN water-reducing-agent is presented.
根据在电瓷绝缘浇装生产工艺中存在的问题，提出了采用“ FDN”减水剂的方法。 cnki
Besides, it effectively maintains fluidity of cement paste and decreases concrete slump loss which is attributed to absorption effect of zeolite to FDN.
并且由于其具有FDN缓释效果，还能有效延长水泥的净浆流动度，减少混凝土坍落度的经时损失。 cnki
Under the conditions of higher water- cement radio, a certain consistency FDN high- range water reducer and hermetic surrounding, the cement paste did not set in a long time.
在较大水灰比，一定浓度 FDN高效减水剂及密闭条件下，上层水泥浆体会长时间不凝结。 zidian8 |