The nucleation enhancement by the negative biased substrate is believed to be a result of the electron emission and ions bombardment.
研究表明，负衬底偏压增强成核主要是发射电子和离子轰击的结果。
2
Efforts should also be made to describe the contradiction and struggle between the positive and negative sides in life so as to exhibit the sublimation and enhancement process of our national quality.
要努力表现民族性格积极面与消极面的矛盾斗争，展现我们民族素质升华、提高的进程。
3
The results indicated that SBSPC may contribute to the immune enhancement of mice without negative impact.