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heat ball
相关语句
  热球
     STUDY ON THE NEW TECHNOLOGY FOR TREATMENT OF THE MOLYBDENUM RESIDUE OF AMMONIA LEACHING WITH SODIUM CARBONAT IN A HEAT BALL MILLREACTOR
     热球磨苏打法处理钼渣新工艺研究
短句来源
     So here we put forward the ceramic accumulation heat ball as the first choice of the material of accumulation heat furnace,and the decentralization commutation combustion method ,which are all have the guide function for the selection and alteration of accumulation heat furnace.
     所以本文提出采用陶瓷蓄热球作为加热炉的蓄热材料,以及分散换向式燃烧方式,对蓄热式加热炉的选型及改造具有较强的指导意义。
短句来源
  相似匹配句对
     the maximum heat flow and total heating of ball-head;
     球头最大热流与总加热量 ;
短句来源
     STUDY ON THE HEAT TRANSFER PERFORMANCE OF CERAMIC BALL REGENERATOR
     陶瓷球蓄热室传热特性的研究
短句来源
     Ball semiconductor
     球形半导体技术
短句来源
     THE SERVICE IS THE HEAT
     服务是心
短句来源
     SYMMETRY AND HEAT
     对称性和热学
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  heat ball
Similarly here, we express the heat integral mean as a power series with respect to the radius of the heat ball, whose coefficients are powers of a distorted heat operator.
      
We provide an asymptotic expansion of the integral mean of a smooth function over the Heat ball.
      


Recoving of molybdenum from the residue of ammonia leaching by extracting with sodium carbonate in a heat ball mill reactor has been studied,the recovery of molybdenum is more than 90 percent and good economic benefit can be obtained.By using this new method,process of the production is very easy to be controlled and operated.

主要研究了热球磨苏打法处理钼渣新工艺,钼回收率大于90%,成本低,操作量控制,经济效益高。

B-C-N nanotube with bamboo-like structure was syn th esized by heating ball milled mixture of boron powder and graphite powder in flo wing ammonia gas stream at 1200℃. The synthesized product was characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmissio n electron microscopy (TEM), electron diffraction (ED), high-resolution transmi ssion electron microscopy (HRTEM), and electron energy loss spectroscopy (EELS). The diameter of nanotube was in the range of 50—180...

B-C-N nanotube with bamboo-like structure was syn th esized by heating ball milled mixture of boron powder and graphite powder in flo wing ammonia gas stream at 1200℃. The synthesized product was characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmissio n electron microscopy (TEM), electron diffraction (ED), high-resolution transmi ssion electron microscopy (HRTEM), and electron energy loss spectroscopy (EELS). The diameter of nanotube was in the range of 50—180 nm and the length is about 20μm.The result of EELS suggested that the nanotube was composed of elements of B, C and N, and the calculated B/C/N atomic ratio was 0.49∶1.00∶0.11.The g rowth mechanism of B-C-N nanotube was also discussed tentatively.

以石墨粉和硼粉为原料, 采用机械球磨法, 在氨气气氛下球磨 120h, 然后在 1200℃氨气条件下热处理6h, 成功的制备出竹节状的 B C N 纳米管. 利用 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、透射电镜(TEM)、高分辨透射电子显微镜 (HRTEM) 以及电子能量损失谱 (EELS) 等手段进行了表征. 纳米管的直径在50~180nm之间, 长度可达20μm. EELS定量分析计算结果表明, 纳米管由硼、碳和氮元素组成, 其 B∶C∶N原子比为0.49∶1.00∶0.11, 并对纳米管的形成机理进行了初步探讨.

 
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