This paper studies pyrogenation of freshwater breeding nacre and mussel,and discusses the influence of shell on the pyrogenation process of macromolecule material.

本文研究了淡水養(yǎng)殖珍珠貝和淡水蚌殼的熱分解行為97久久久久人妻碰碰碰碰，并且探討了貝殼對(duì)高分子材料熱降解行為的影響一级毛片免费网站看片。

As an initial attempt to set up a "Freshwater Mussel Watching" system,swan mussels were collected from Wuli Lake of the Taihu Lake in March 2003 for analysis by gas chromatography of dichlorodiphenyltrichloroethanes(p,p′-DDE,o,p′-DDT,p,p′-DDD,p,p′-DDT),and α-,β-,γ-,δ-hexachlorocyclohexane isomers in soft tissues.

作為建立淡水&貝類(lèi)觀(guān)察&體系的初步嘗試gg网站网站在线观看视频，選定2003年3月采自太湖五里湖水域的背角無(wú)齒蚌為研究對(duì)象国产黄色视频观看，測(cè)定其體內(nèi)滴滴涕和六六六含量。

In this article, the effect of different water pH (pH 5, 6, 7, 8, 9)on the secretion of nacre of freshwater pearl mussel Hyriopsis cumingii were studied with histochemical methods and transmission electron microscopy.

結(jié)果表明：在中性水環(huán)境中XXNX日本19视频，貝體能積極地從外界水環(huán)境中吸收鈣黄色在线观看a偏，并能旺盛地合成和分泌貝殼珍珠層及珍珠有機(jī)基質(zhì)前體物質(zhì)；持續(xù)的酸性水環(huán)境導(dǎo)致貝體的鈣嚴(yán)重丟失国产欧美日韩操屄视频，并引起珍珠質(zhì)分泌細(xì)胞對(duì)有機(jī)基質(zhì)前體物質(zhì)的合成和分泌能力減弱亚洲欧美性黄色片；持續(xù)的堿性水環(huán)境雖能導(dǎo)致貝體對(duì)鈣的積累，但珍珠質(zhì)分泌細(xì)胞合成和分泌珍珠質(zhì)有機(jī)基質(zhì)前體物質(zhì)的能力減弱99自拍偷拍福利；水環(huán)境的酸性或堿性程度越高把女人弄爽A片特黄大片在线观看，對(duì)珍珠質(zhì)分泌細(xì)胞的合成和分泌活動(dòng)的影響越大。