But the material particle DNA sharp separation purification to the ultra centrifugal equipment (supercentrifuge, turned the head with appurtenance) to set a higher request.

而質(zhì)粒DNA的快速分離純化又對(duì)超離心設(shè)備（超速離心機(jī)、轉(zhuǎn)頭和附屬設(shè)備）提出了更高要求不卡性爱视频。

The first man who spoke had a well-trimmed beard, an aquiline nose and a high forehead; his dark eyes were sharp and very serious.

第一個(gè)說話的人長著仔細(xì)修剪的胡子自拍女生裸体自慰、鷹鉤鼻子和高高的額頭；他深色的眼睛銳利而且非常嚴(yán)肅。

That drew a sharp response from Jordan and Egypt, as well as the Arab League.

這吸引了來自約旦和埃及的劇烈反應(yīng)99reav.，以及阿拉伯聯(lián)盟无码毛片视频在线看。

Sharp edge of a reflex arc lamp indicator and band can make reading very clear, to avoid the visual errors.

一個(gè)有鋒利邊緣的指示器和帶反射弧光燈能夠使讀數(shù)非常清楚，能夠避免視覺誤差国产av精选久久久。

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3 His mechanical philosophy of nature was a sharp break with the prevailing conception as represented by Renaissance natural philosophy, and scarcely less of a break with Aristotelianism; and in his sensation of making a fresh start he spoke for 17th century science as a whole.

他的機(jī)械自然哲學(xué)截然地對(duì)立由文藝復(fù)興自然哲學(xué)所代表的優(yōu)勢概念https黄视在线，但比較不像是和亞里斯多德主義之間的裂痕欧美色色大黑吊视频。而且在他做為全新起點(diǎn)的轟動(dòng)人物(sensation的特別用法)之中。他成為十七世紀(jì)整體科學(xué)的代言人日韩亚洲欧美高清专区。

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His irony sometimes is humorous but sharp, when expressing various disgusting manners of the life in the small town, this performance is obvious; sometimes his irony is truly emotional: Babbitt is funny as a typical model image, but when his pursuit of freedom is destroyed by the cruel actuality, the depiction of those details are sadly; In " Arrowsmith ", when revealing the corrupt phenomenon consisting in American medical science field , his irony becomes gloomy and serious.

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