Bleaching

例句:

• One of these compounds, namely, chloride of lime, is the almost universal bleaching agent of commerce. 伯莎M.克拉克. 科学通论.
• But fabrics immersed in a bleaching powder solution do not lose their color as would naturally be expected. 伯莎M.克拉克. 科学通论.
• The acid used to liberate the chlorine from the bleaching powder, and the chlorine also, rot materials with which they remain in contact for any length of time. 伯莎M.克拉克. 科学通论.
• By experiment it has been found that the addition to the bleaching solution of an acid, such as vinegar or lemon juice or sulphuric acid, causes the liberation of the chlorine. 伯莎M.克拉克. 科学通论.
• An enormous quantity of sodium carbonate, or soda, as it is usually called, is needed in the manufacture of glass, soap, bleaching powders, and other commercial products. 伯莎M.克拉克. 科学通论.
• The harmless nature of sulphurous acid makes it very desirable as a bleaching agent, especially in the home. 伯莎M.克拉克. 科学通论.
• As the moist material is drawn through the bleaching solution, the acid on the fabric acts upon the solution and releases chlorine. 伯莎M.克拉克. 科学通论.
• That this solution has bleaching properties is shown by the fact that a colored cloth dipped into it loses its color, and unbleached fabrics immersed in it are whitened. 伯莎M.克拉克. 科学通论.
• In like ways, chemistry grew out of processes of dying, bleaching, metal working, etc. 约翰·杜威. 民主与教育.
• The art of bleaching coloured stock was unknown, and white paper was made alone from stock that came white into the mill. 威廉·亨利·杜利特. 世纪发明.
• For animal fibers it is therefore necessary to discard chlorine as a bleaching agent, and to substitute a substance which will have a less disastrous action upon the fibers. 伯莎M.克拉克. 科学通论.
• Some of the compounds formed by the sulphurous acid bleaching process are gradually decomposed by sunlight, and in consequence the original color is in time partially restored. 伯莎M.克拉克. 科学通论.
• The material to be bleached is drawn through an acid _a_, then through a bleaching solution _b_, and finally through a neutralizing solution _c_. 伯莎M.克拉克. 科学通论.
• The substance almost universally used as a rapid artificial bleaching agent is chlorine, best known to us as a constituent of common salt. 伯莎M.克拉克. 科学通论.
• About this time, both in England and America, machines had been devised for sewing lengths of calico and other cloths together, previous to bleaching, dyeing or printing. 威廉·亨利·杜利特. 世纪发明.
• This tendency of chlorine to combine with hydrogen makes it valuable as a bleaching agent. 伯莎M.克拉克. 科学通论.
• This mild form of a bleaching substance has been put to uses which are now prohibited by the pure food laws. 伯莎M.克拉克. 科学通论.
• The manufacture of soap, glass, bleaching powders, baking powders, washing soda, and other chemicals depends on salt, and it is for these that the salt beds are mined. 伯莎M.克拉克. 科学通论.
• Bleaching powder is very useful in the removal of stains from white fabrics. 伯莎M.克拉克. 科学通论.
• Men say his bones lie bleaching in the fields of Palestine. 马克·吐温. 傻子出国记.
• Ink spots rubbed with lemon juice and dipped in bleaching solution fade away and leave on the cloth no trace of discoloration. 伯莎M.克拉克. 科学通论.
• It comes in the form of powder, which can be dissolved in water to form the bleaching solution in which the colored fabrics are immersed. 伯莎M.克拉克. 科学通论.
• The preparation sold under this name is made as follows: Dissolve 6 parts of soap in 2 parts of water; add 4 parts of bleaching liquor and 1/4 part of aqua ammonia. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Chlorine gas has a very injurious effect on the human body, and hence cannot be used directly as a bleaching agent. 伯莎M.克拉克. 科学通论.

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