The results show that Widmansttten structure needle consists of many blocky subgrains that have higher dislocation density and subgrain boundary is made up of dislocation tangle.
2
在向国际货币基金组织所作的一次一针见血的演讲中,他敦促第三世界国家进行全面改革。
In a hard-hitting speech to the IMF, he urged Third World countries to undertake sweeping reforms.
《柯林斯英汉双解大词典》
3
对于一个大的肿瘤,它可能需要通过到不同肿瘤部位的电极针做多次消融,以确保没有留下肿瘤组织。
For a large tumor, it may be necessary to do multiple ablations by repositioning the needle electrode into different parts of the tumor to ensure no tumor tissue is left behind.