1420

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1.
SEM observation showed that the surface of 1420 Al-Li alloy turn colors, and rust spot become bigger after salt corrosion.
电镜扫描观察发现，1420铝锂合金锈点直径较大，且连成片，表面明显变色。
www.chemyq.com
2.
It was the imperial seat for Ming and Qing dynasty emperors from 1420 until 1912 when the last emperor, Pu Yi, abdicated.
1420年到1912年间，它是明清两朝统治者的权力中心，直到中国的最后一个皇帝溥仪退位。
www.kekenet.com
3.
As last, 1420 Al-Li alloy weld without porosity and with good appearance was obtained by adopting dual laser beams welding.
适宜的双激光束焊接工艺可以获得成形美观且无气孔的优质1420铝锂合金焊缝，是1420铝锂合金焊接较为理想的焊接工艺。
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4.
The predicted results agree well with experimental results for a hybrid welding experiment on 1420 Al-Li alloy.
针对1420铝锂合金的复合焊工艺试验表明计算结果与试验相符合。
www.magsci.net
5.
The complex, finished in 1420, was the location of the Chinese imperial court for five centuries, from the Ming to the final Qing dynasties.
这片建筑群完成于1420年，五百年来，从明朝到清朝一直是中国皇室的所在地。
v2basea1.flashcdnline1.com
6.
The SH100 is a good-looking, pocket camera with a resolution of 14. 2 megapixels, a 5x optical zoom and a wide-angle lens.
SH100是一款外观精美的袖珍相机，解析度为1420万图元，带有5倍光学变焦和广角镜头。
chinese.wsj.com
7.
Built by the Ming emperor Yongle in 1420, The Hall of Prayer for Good Harvests is a masterpiece of Chinese religious architecture.
1420年，明永乐皇帝年间建起的天坛，是一座祈祷丰收的中国宗教建筑杰作。
blog.sina.com.cn
8.
Ok. It's one of the four largest palaces in the world. It was built in 1420.
好的，故宫是世界四大宫殿之一，建于公元1420年。
blog.5d.cn
9.
Megacycles This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。
www.xycai.com
10.
The variation laws of microstructure and strength of 1420 Al Li alloy ingot during the heating were studied.
研究了1420铝锂合金铸锭在加热过程中组织和强度的变化规律。
www.chemyq.com