Prices of the diamond with same weight rose 15 percent from last year.
同样一个级别的钻石,今年的价格要比去年上涨15%。
Most experimental research had demonstrated that well-designed composite symmetrical elements could absorb more impact energy than metal elements with same weight.
试验研究表明在相同重量下,设计合理的复合材料对称元件可以比金属元件吸收更多的冲击能量。
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