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- This paper deals with the conditions, types, laws and mechanisms of atomic diffusion in nonferrousmetals and factors affecting the diffusion with some of the laws expounded. 本文概述了有色金属原子扩散的条件和分类、扩散定律、扩散机制和影响扩散的因素,并阐述了其中的一些规律。
- At high temperature, the material at the closed pore quickly completes the recrystallisation, but is needs a long time to weld the pore closure for atom diffusion. 高温下的空洞闭合后能够立即完成再结晶过程,但空洞焊合需要一定的保温时间。
- The EDX analysises for the IMC of Sn-3Ag-0.5Cu/Cu and Sn-0.7Cu/Ni solder joints indicate that different magnetic field directions have different effects on the atomic diffusion of different constitute elements. 且正反向强磁场条件下Sn-3Ag-0.;5Cu/Cu焊点及Sn-0
- The atom bomb is of catholic concern. 原子弹受到普遍的关注。
- That cannot get up an atom of sympathy for them. 那并不能激发起人们对他们的丝毫同情。
- The ship was sunk by an atomic submarine. 这艘船是被一艘核潜艇击沉的。
- Scientists have unlocked the secret of the atom. 科学家已经揭开了原子的秘密。
- Clouds cause the diffusion of light from the sun. 云使阳光漫射。
- Our first atomic reactor was built in1958. 我们第一个原子反应堆建于1958年。
- An atomic bomb can annihilate a city. 一枚原子弹能毁灭一个城市。
- The reactor was built for tame atomic energy use. 这座反应堆是为原子能的安全使用而建造的。
- The particles in an atom are infinitely small. 原子里的粒子极小。
- Her speech argued the case against atomic weapons very effectively. 她的发言就反对原子武器问题进行了十分有力的论证。
- An atomic or a nuclear bomb. Used with the. 原子弹原子弹或核弹。与the连用
- There isn't an atom of truth in the rumour. 谣言中没有丝毫的真实性。
- An atom bomb would destroy a city. 一颗原子弹能摧毁一座城市。
- Having an atomic number greater than 92. 超铀的原子序数超过92的
- Keywords thermosonic flip chip bonding;bonding process monitoring;vibration propagation;bonding mechanism;bonding reliability;novel TSFC bonding process;atom diffusion; 热超声倒装键合;键合过程监测;运动传递;键合机理;键合强度;键合可靠性;新型倒装键合工艺;原子扩散;
- Today's systems ramp up and down by thousands of degrees a second.Still, the arsenic and boron atoms diffuse too much for comfort, making the junctions thicker than desired for optimum speed. 目前的系统可以在一秒钟内使温度上升下降摄氏几千度,不过砷或硼原子还是向下扩散太多,以致接面比最佳速度所需的厚度还要厚。
- Insulation used to prevent heat diffusion, as from a steam pipe. 绝热材料用来防止热量散失的绝热材料,如从蒸汽输送管上