The boron-doping technology and metallurgical micro-structure of die steel are discussed from the angle of its resistance to repeated shock compression.
结果指出：模具钢渗硼层在多次冲击压缩载荷下发生一定的塑性变形。
On the way home, I joined a small crowd outside a TV shop, looking in awe and shock at the repeated clips of the towers coming down.
在回家的路上，我加入了在电视前的一群人，充满敬畏和惊讶，一次次看着双子塔倒塌的一幕。
Objective: to find a method to replace venesection, to help severely burned patients tie over shock stage and to relieve pains ceased by repeated venipuncture.
摘要目的：为重度烧伤病人渡过休克关争取有效时间，减少反复外周浅静脉穿刺的疼痛，取代传统静脉切开。
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