在拱廊上，一个叫彭世勇的高个子的老人在唱著中国传统民歌。
In an archway, a tall elderly gentleman named Peng Shi Yong is singing a traditional Chinese ballad.
[4]郑吉良，孙勇，彭明军。单向玻璃纤维增强树脂基体复合材料拉伸失效机理[J]。航空材料学报，2015,35 (4)：45 - 54。
ZHENG J l, SUN y, PENG m J. Tensile failure mechanism for resin matrix composites reinforced by unidirectional glass fiber [J]. Journal of Aeronautical Materials, 2015, 35 (4) : 45-54.
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