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- colored pH indicator 颜色pH指示剂
- It is firstly def i ned as minus logarithm of PH indicator. 首先定义为氢离子浓度负对数。
- A red-brown powder used as a dye,especially as a chemical pH indicator (congo red is red in basic and blue in acidic solutions). 用作燃料的红褐色粉末,尤用作PH值显示剂(在碱性溶液中呈红色,在酸性溶液中呈蓝色)。
- The accumulation of acidity material in the blood inside body and organization, its characteristic is chroma of the pH indicator in blood rises, PH value falls. 体内血液和组织中酸性物质的堆积,其特点是血液中氢离子浓度上升、PH值下降。
- If there is besmirch on leather, dip in with clean wet sponge scour is wiped, perhaps dip in with cloth bath of soap of proper pH indicator is brushed, make its natural work next. 若皮革上有污渍,用干净湿海绵蘸洗涤剂擦拭,或者用布蘸适当浓度的肥皂水洗擦,然后让其自然干。
- Urea formaldehyde shrinks beforehand fluid (UFC) is to producing formaldehyde while, undertake absorption to formaldehyde gas with water of urea of 35 % pH indicator and make. 尿素甲醛预缩液(UFC)是在生产甲醛的同时,用35%25浓度的尿素水对甲醛气体进行吸收而制得。
- Watch foliaceous plant to much, should stop apply nitrogenous fertilizer, chase after appropriately apply potash fertilizer of a few low pH indicator, with increasing flowers fight cold sex. 对大部分观叶植物,要停施氮肥,适当追施一些低浓度的钾肥,以增加花卉的抗寒性。
- Application and Color Showing Inaccuracy of Paper pH Indicator pH试纸的使用与显色误差
- 9.8 The pH value is 8.5 by pH indicator strips. 用ph试纸测得泥浆ph为8.;5。
- 8 The pH value is 8.5 by pH indicator strips. 用pH试纸测得泥浆pH为8.;5。
- 8 The pH value is 8.5 by pH indicator strips. 用pH试纸测得泥浆pH为8.;5。
- That's rather an effective use of color. 这种使用颜色的手法效果相当好。
- pH indicator absorbance ratio method pH指示剂吸收值比值法
- The hat was decorated with colored beads. 那顶帽子上饰有彩色珠子。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
- The color of her dress suits her very well. 她衣服的颜色很适合她。
- Children like seeing the color television. 孩子们喜欢看彩色电视。
- Flowers are blooming in a riot of color. 百花齐放,万紫千红。
- The beverage is often colored with caramel. 这种饮料常用焦糖染色。
- Determination of metronidazole by pH indicator absorbance ratio method pH指示剂吸收比值法测定甲硝唑