结果表明，在合金结晶过程中导入超声波可提高生核率，使合金组织细化，从而提高其力学性能。
The results revealed that application of ultrasonic during solidification of alloys can increase the nucleation rate and refine alloy structures. thus improving the mechanical properties.
研究结果表明，在钢液中造成一定方向和程度的成分起伏，可以促进钢液生核，从而增加铸坯中等轴晶数量。
The experiment results show that special constituent fluctuation in certain direction and with enough strength in liquid metal can promote nucleation in liquid metal and increase...
所有的生命形式可以划分为三大类：真核生物(包括植物，动物，真菌，以及其他生物)、细菌以及古生菌。
All of life can be divided into three domains: Eukarya (including plants, animals, fungi, and other organisms) Bacteria, and Archaea.
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