Porous

例句:

• This process is best adapted to what are known as free milling or porous ores, where the gold is free and very fine and is attracted readily by mercury. 威廉·亨利·杜利特. 世纪发明.
• A porous tube, _b_, holds a rod of amalgamated zinc, to the top of which a binding-screw is soldered. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• For words, theories, symbols, slogans, abstractions of all kinds are nothing but the porous vessels into which life flows, is contained for a time, and then passes through. 沃尔特·李普曼. 政治序论.
• In filtration, the water is forced through porcelain or other porous substances which allow the passage of water, but which hold back the minute foreign particles suspended in the water. 伯莎M.克拉克. 科学通论.
• Some kinds were too soft and porous, others were liable to split easily. 鲁伯特·萨金特·荷兰. 历史性发明.
• The porous jar is then filled to the same height as the copper solution in the jar with diluted sulphuric acid, in the proportions of one of acid to twenty of water. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• The agglomerated product must be porous so as to afford access of the furnace-reducing gases to the ore. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• If dough is left standing in a warm place a number of hours, it swells up with gas and becomes porous, and when baked, is less compact and hard than the savage bread. 伯莎M.克拉克. 科学通论.
• It consists of impressing oil pictures on a bat of glue and then pressing the bat on to the porous unbaked clay or porcelain which transferred the colours. 威廉·亨利·杜利特. 世纪发明.
• While still warm dip porous paper (cut into small squares) in the solution and dry them. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Redwood does not contain pitch, the inflammable element in wood, and, in addition, it is extremely porous, quickly absorbing water. 佚名. 神奇的知识之书.
• In the illustration, which shows a slightly modified form, a cruciform rod of zinc within a porous cup is surrounded by a copper cell, the whole being enclosed within a glass jar. Edward W. Byrn. 十九世纪发明进展.
• This can be done by mixing a little soda in the flour, because the heat of the oven causes the soda to give off bubbles of gas, and these in expanding make the heavy mass slightly porous. 伯莎M.克拉克. 科学通论.
• Butter, cheese, and other foods sensitive to heat are placed in porous vessels wrapped in wet cloths. 伯莎M.克拉克. 科学通论.
• The cement commonly used for fastening the tops on kerosene lamps is plaster of Paris, which is porous, quickly penetrated by the kerosene, and readily destroyed. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Several methods of making porous filaments. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• When the article comes out of the plating bath the silver deposited is in a comparatively porous and fluffy state. 佚名. 神奇的知识之书.
• Charcoal is porous and absorbs foul gases, and thus keeps the region surrounding sewers sweet and clean and free of odor. 伯莎M.克拉克. 科学通论.

录入:鲁道夫