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Water-coal-slurry additives can be prepared from certain compounds in the paper making black waste water such as lignine, organic acid and glycan substances by sulfonation, condensation and modification process.
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利用造纸黑液中的木质素、有机酸和聚糖类化合物 ,在一定条件下进行磺化、缩合、改性制取质优价廉的水煤浆添加剂。 |
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Water-soluble pentakisadduct derivative of C 0 dipeptide was synthesized by direct addition of nitrene intermediate, which was generated by α-elimination mechanism, to C 0 with . % yield.
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通过伯氨氢原子在一定条件下发生 α-消除得到活性中间体氮烯的方法 ,合成了水溶性五加成 C0 二甘肽衍生物 ,产率 . %。 |
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Waterproofing for underground flat roofed square hall of Dongzhimen subway station, Beijing
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北京地铁东直门车站地下方厅防水施工 |
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Watery Concrete Technique
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清水混凝土施工技术 |
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Watkins[] has shown that h(n)>0 if and only if m(mod ).
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文献[]中,Watkins证明了h(n)>0当且仅当n≠(mod ),Thomason在文献[ ]中证明了h(k+ )= 。 |
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Wavefront Reconstruction Simulation with Successive Overrelaxation Method for Hartman Sensor
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超松弛法哈特曼传感器波前重构仿真分析 |
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Wavelet Packet and EAR Model Based Feature Extraction and Assessment of Chatter in Milling
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基于小波包和EAR模型的铣削颤振特征提取和评价 |
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Wavelet transform is used here to extract fault information from current travelling waves and to implement bus bar protection.
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小波变换作为新的数学分支 ,在这里用来提取电流行波信号中的故障信息 ,实现母线行波保护。 |
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Wavelet transform was proved to be a suitable tool for the analysis of travelling waves and is utilized here to extract fault information from current travelling waves and implement protection scheme.
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小波变换作为新的数学分支 ,在这里用来提取电流行波信号中的故障信息 ,实现原理方案。 |
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Waves in Shear Flow Under the Slowly Varying Buttom
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缓变底面情况下剪切流动中的波 |
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Ways to decide the configurations of monose and their reaction mechanism of becoming osazone
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单糖构型的确定与成脎反应机理 |
