Conclusion: Under adequate culture conditions, high density and high expression culture of the recombinant cell line could be realized by using bioreactor.

结论：在较为适当的培养条件下，利用生物反应器可使工程细胞的培养达到高密度、高表达。

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Since the original form of Chinese poetry is symmetrical, the symmetrical expression, as the fundamental feature of antithetical couplet, virtually reflects Chinese poetic expression culture.

对联的这三个突出特征都深深地扎根于民族文化的土壤之中，丰富而且是最典型地体现了华夏民族的对称表达文化、简短表达文化和诗性表达文化。

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In 1992, when Time Warner was under fire for releasing Ice-T's violent rap song Cop Killer, Levin described rap as a lawful expression of street culture, which deserves an outlet.

1992年公司因出品 Ice-T 乐队暴力的说唱歌曲《警察杀手》后倍受谴责时，列文却将说唱音乐描述为街头文化的合法表达方式，并说它应该有自己的宣泄途径。

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This powerful form of creative expression usually involves art made outside the limits and rules of official culture.

VOA: special.2010.04.14

Public space, the common area for culture and expression that had been so circumscribed in my childhood, has now been vastly expanded.

NEWYORKER: Days of Rage

By taking the time to explain a fertile culture of expression, students of hip hop place at our disposal some of the most intriguing investigations of a powerful art form.

NPR: Author Comes to Hip-Hop Music's Defense

The latest expression of Afro-Latino culture is the best-selling song on iTunes this week.

NPR: The Music Of Africa, By Way Of Latin America