这些现象表明，虽然南极地区紫外线辐射很强，但南极蓝藻可以产生多种抗紫外辐射的活性物质来适应这种极端环境。

These changes suggest the possible prescence of active substances in the cells of Antarctic Cyanophyceae-B able to resist UV-B radiation.

youdao

目的：观察辐射对血管活性物质的影响及其机制、意义以探讨辐射防治再狭窄的机制。

Objective: To study the effects and mechanism of radiation on various kinds of vasoactive substances.

youdao

目的：观察辐射对血管活性物质的影响及其机制、意义以探讨辐射防治再狭窄的机制。

Objective: To study the effects and mechanism of radiation on various kinds of vasoactive substances.

youdao