论述了感应淬火零件的残余应力形态,并对载货车半轴的材料、硬化层深度及法兰圆角淬火层分布提出了个人见解。
This paper demonstrates residual stress of induction quench parts and personal views about stress distribution of flange corner heat treatment, truck half axle material and depth of hardened layer.
多发性硬化症斑块多发生于侧脑室体部旁和大脑半球半卵圆中心,胼胝体和脑干也是好发部位。
RESULTS Multiple sclerosis plaques located in the periventricular area, central of cerebral hemisphere and also at the corpus callosum and brain stem.
半水石膏凝结硬化很快,其初终凝时间为6 ~ 30分钟,可操作时间只有5 ~ 10分钟,往往不能满足石膏基材料的成型与施工的需要。
Setting time of gypsum plaster is very short, usually only 6 ~ 30 min, and operation time is only 5-10 min, which cannot satisfy the practical plastering and construction of gypsum-based material.
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