When a substance in an isolated system changes phase, the total amount of mass does not change.

在孤立系統(tǒng)內(nèi)物質(zhì)的物理或化學(xué)性質(zhì)的變化過程中黄色视频无码在线观看，總質(zhì)量保持不變三级免费在线视频。

It is difficult to study element 104 because only a few atoms of this substance can be isolated at one time.

對(duì)104 號(hào)元素進(jìn)行研究很困難，因?yàn)橐淮沃荒芊蛛x出這種物質(zhì)的幾個(gè)原子熟女露脸嗷嗷叫。

They claimed to have isolated a substance from the cerebrospinal fluid of dogs that had been deprived of sleep for 6 to 15 days.

他們倆從有6至15個(gè)小時(shí)沒有睡覺的狗的腦髓液中分離出一種物質(zhì)aaa69相同的网站。

Compound 1 was first isolated as a natural substance, and compounds 2-6 were isolated from nidus vespae for the first time.

化合物1為首次分離得到的天然產(chǎn)物，化合物2~6均為首次從蜂房中分離得到国内偷拍一级黄色视频。

The results show that Banlangen the removal of a significant temperature increase can cause the body heat of the original role, and has isolated this active substance.

研究結(jié)果表明福利网站导航，板藍(lán)根具有顯著的清除體內(nèi)能引起體溫升高的熱原作用，并已分離得到這種活性物質(zhì)免费一级毛片无码视频。

isolated substance：離析物質(zhì)

irrelevant to 與. . . 不相關(guān) | isolated substance 離析物質(zhì) | it is not just that . . . 這并不只是因?yàn)?/p>