The committee, remembering that periods of 5 to 15 years had elapsed before it was found that gum acacia could lead to amylold degeneration, understandably took the position that great, caution should be exercised in recommending dextran: macromolecular substances of this type were known to cause rapid sedimentation of red blood cells as well as a tendency to sludging.

該委員會不會忘記18禁亚洲深夜福利入口导航，5至15年時間過去之后才發(fā)現(xiàn)中文字暮-色哟哟，阿拉伯膠會導(dǎo)致淀粉樣變性久久夜色精品，委員會理解地堅持這個觀點啪无码高请不卡在线观看，即應(yīng)該謹(jǐn)慎實驗后推薦葡聚糖：已知的這種大分子類型物質(zhì)能引起紅血細胞快速沉淀欧美熟妇人妻XXXXX，就像下水道的污泥的趨勢一樣。

The third type is different kinds of organisms, including straw, peels and core of melons and fruits, vegetables, weed, remains of animals, algae, manure of humans and animals, house-hold rubbish, meat, fibre, waste cloth, leather, waste? wood, silt of river and lake, silt from sewer and sewage treatment plant, peat and brown coal except harmful chemicals, organic matter containing over-standard mercury, benzene and heavy metal.

第三類是各種有機物欧美在线AⅤ精品，包括秸桿黄色网站影视电影黑人视频在线观看、瓜果皮核、蔬菜18禁超污又黄又爽的免费网站、雜草在线观看国产黄AV免费看、動物殘體、藻類亚洲妓女视频、人畜糞便一级A片免费播放清高视频、生活垃圾、肉類亚洲91在线、纖維三级网站在在线观看视频、廢布、皮革2021最新国产精品视频网站、廢木人人爽人人摸人人、河湖淤泥、下水道及廢水處理廠污泥国产久草视频、泥炭亚洲人妻91综合、褐煤，但不包括有害化學(xué)藥劑黄色网站线上免费、含汞裸体美女让男人桶出白浆、苯及重金屬含量超標(biāo)的有機物。

Studies on purification in sewer pipe were present, including: wastewater resistance time, fluid state, microorganism, and water quality transformation.

從污水在下水道中的流經(jīng)時間在线污视频国产一区、流動狀態(tài)、微生物存在情況欧美不卡高清视频、其中水質(zhì)變化規(guī)律等說明下水道的污水凈化能力66j8在线视频观看，指出污水在下水道中的流經(jīng)時間、流動狀態(tài)，具備了類似自然界中水體凈化所必需的條件日韩毛片精品一区二区；下水道中水質(zhì)變化規(guī)律雖與河流凈化機理及活性污泥反應(yīng)動力學(xué)模式等不盡相同欧美在线AⅤ，但變化客觀存在，可將其與污水處理廠視作一個整體爆操女人。

ecology：生態(tài);環(huán)境

馮乃謙教授指出生態(tài)水泥(Eco-cement)是以生態(tài)環(huán)境(Ecology)與水泥(Cement)的合成語而命名的,它是一種新型的波特蘭水泥. 這種水泥以城市垃圾燒卻灰和下水道污泥為主要原料,經(jīng)過處理、配料,并通過嚴(yán)格的生產(chǎn)管理而制成的工業(yè)制品,