The temperature, at which alumina, aluminum fluoride and carbon react to form aluminum sub-fluoride at different pressures, was evaluated with "Substance Gibbs' Free Energy Functional Determinant" method.

摘 要：利用"物質(zhì)吉布斯自由焓函數(shù)法"，討論不同壓力下低價(jià)氟化鋁生成及分解的熱力學(xué)條件无码国产精品一区二区v尺中国。

Fluoride is a major component of the low hydrogen electrode. It can react with hydrogen during welding to produce hydrogen fluoride, and decrease the hydrogen content of weld bead.

氟化物是低氫系手工電焊條的主要成分之一美裸网站，在焊接時(shí)可與氫反應(yīng)產(chǎn)生氟化氫，使焊道氫的含量降低日韩欧美综合精品。

In the electrolytic exhaust gas of aluminium, the hydrogen fluoride is the main pollutant , so it is to judge one of the important standards up to standard of in electrolytic discharge of aluminum smelter to measure the content that the exhaust gas hits the hydrogen fluoride.

在鋁電解煙氣中国产孕妇乱子伦精品免费观看，氟化氫是最主要的污染物，因此檢測煙氣中氟化氫的含量是判斷電解鋁廠排放是否達(dá)標(biāo)的重要標(biāo)準(zhǔn)之一视频国产福利。

Many scholars paid close attention to screening risks factors of high fluoride in organism and it is very essential to indentify the primary sensitive indicatrix for forecasting fluoride bone injury.

隨著對健康要求的提高一级黄色毛片视频免费看，國內(nèi)外學(xué)者越來越關(guān)注篩選導(dǎo)致高氟的危險(xiǎn)因素，以及確定氟性骨損傷的早期靈敏指標(biāo)91福利网国产。

The experimental group was treated with fluoride iontophoresis and the control group was spread with sodium fluoride glycerine.

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Objectives: In our study, a kind of fluoride microelectrode will be fabricated and put into the use of fluoride ion measurement.

離子選擇性微電極是近年來興起的一種新的檢測方法美女自慰喷水国产，在口腔醫(yī)學(xué)研究領(lǐng)域顯示了獨(dú)到的優(yōu)越性。

In 1886, french chemist moissan, combining experiences from people before him, successfully isolated fluoride. he then proved that fluoride could react with most of the elements. he received 1906 nobel chemistry award.

1886年最新在线你懂的，法國化學(xué)家莫瓦桑国产模特AV私拍大尺度，集結(jié)前人的經(jīng)驗(yàn)，成功分離出氟久久有线视频，其后并證明氟幾乎能和絕大多數(shù)元素產(chǎn)生反應(yīng)在线看羞羞视频网站，使他獲得多國獎?wù)拢㈧?906年獲頒諾貝爾化學(xué)獎www.91zaixian。

The Cause for the accumulation of fluoride in Antarctic krill is studied by the analysis of the characteristics of fluoride change in the cuticle of the krill before and after moulting.

南大洋氟的生物地球化學(xué)研究Ⅱ免费观看的黄网站。氟在南極磷蝦甲殼中的動態(tài)變異及其富集原因張海生更新最快的黄色网站；泮建明；程先豪大尺寸的黄色视频；夏衛(wèi)平

In order to understand the mechanism of the detoxication of the fluoride poisoned silkworm by naphthylamine compounds such as CRL, the effect of CRL on the activity of the glutathione peroxidase in the hemolymph of fluoride poisoned silkworm larvae was studied.

摘 要：為了解萘胺類化合物CRL緩解家蠶氟中毒的機(jī)理精品熟女少妇av免费，研究了CRL對氟中毒家蠶幼蟲血淋巴中谷胱甘肽過氧化物酶活性的影響。正常的家蠶5齡幼蟲血淋巴GSH-Px在齡的中期活性較強(qiáng)男女猛烈啪啦啦无挡动态图，齡初和齡末活性較弱欧美色综合高清视频播放。

Results There were a positive correlative relationship between fluoride concentration in drinking water and the rate in every osteosclerosis degree. There was also a positive correlation relationship between fluoride concentration in drinking water and the index of osteosclerosis.

結(jié)果 飲水氟水平與各度骨質(zhì)硬化率呈正相關(guān)關(guān)系，與骨質(zhì)硬化指數(shù)也呈正相關(guān)關(guān)系免费看一级做a爰片久久毛片A片。