1) migration of chemical substances
化学物迁移
1.
Numerical simulation of migration of chemical substances from plastic food packaging materials into foods;
塑料食品包装材料化学物迁移的数值模拟
2) physico-chemical migration
物理化学迁移
3) physicochemical migration
物理化学的迁移
5) electrochemical migration
电化学迁移
1.
In situ observation and research on electrochemical migration of SnAgCu solder joints;
SnAgCu钎料焊点电化学迁移的原位观察和研究
2.
Surface insulation resistance(Rs) test and electrochemical migration(ECM) test were experimented to estimate the effect of fluxes residues on reliability of PCB.
为了研究焊后残留物的腐蚀性以及可能对PCB的电气绝缘性能造成的影响,通过表面绝缘电阻(Rs)试验和电化学迁移试验评价了三种不同固体含量的无VOC(挥发性有机物)免清洗助焊剂焊后残留物的可靠性。
3.
In this paper, the insulation failure of Printed Circuit Boards has been summarized due to electrochemical migration, and the mechanism and effect parameters of CAF was analyzed, and then some anti-CAF laminates were introduced.
文章阐述了电化学迁移对印制电路板绝缘性的破坏,并分析了CAF现象的成因和影响因素,介绍了改善基材耐CAF性能的方法。
6) ecology of animal migration
动物迁移生态学
补充资料：工程化学障碍物(见化学障碍物)
工程化学障碍物(见化学障碍物)
engineering-chemical obstacle
习U·上日、11匕I一9 nuQXue Zhang’aiwu工程化学障碍物(engineelsng一ehemiealobstacle)见化学障碍物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条