The structure and dimension of welding pin are the main factors which affects the flow direction of the plastic metal in FSW zone and the quality of the FSW seam.
焊接过程中搅拌焊针的结构形状是影响焊缝区塑性软化材料流动方式的主要因素，从而影响焊缝的成型质量。
It is introduced a puller applied to purification of rare earth (RE) material, according to the float zone (FZ) technics of crystal growing, interprets main structure and characteristic of the puller.
介绍了一种用于稀土金属提纯的单晶炉，根据区熔法提纯单晶的特殊工艺要求，分析了其主要结构及特点。
The Tanlu ductile brittle shear zone is the major structure as passageway for ore fluid and its secondary faults are the main host.
郯庐韧—脆性剪切带是主要的导矿构造，其次级断裂是主要容矿场所。
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