实验结果表明，热处理前去掉冷拉棒表面的碎晶层可以防止它在热处理过程中产生裂纹。
Experiment results show that removing the surface broken crystal layer of the cold drawn rod can prevent heat treatment induced cracks.
以紫外拉曼光谱技术研究了在不同焙烧气氛中氧化锆样品的表面晶相结构及其转变过程。
UV Raman spectroscopy has been employed to investigate the surface phase transformation of zirconia calcined at different temperatures in different atmospheres.
由于拉单晶过程中投料量较大，炉体结构复杂、造价昂贵，所以拉晶实验成本太高。
Because of the large stuff of silicon, complex structure of furnace and expensive cost, computer simulation is a best way to optimize design.
由于拉单晶过程中投料量较大，炉体结构复杂、造价昂贵，所以拉晶实验成本太高。
Because of the large stuff of silicon, complex structure of furnace and expensive cost, computer simulation is a best way to optimize design.
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