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- 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。
- 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。
- pH indicator absorbance ratio method pH指示剂吸收值比值法
- Application and Color Showing Inaccuracy of Paper pH Indicator pH试纸的使用与显色误差
- That word is spelt with a PH, not an F. 那个字里的f音拼作PH而不是F。
- Determination of metronidazole by pH indicator absorbance ratio method pH指示剂吸收比值法测定甲硝唑
- Assay of atropine sulfate by the pH indicator absorbance ratio method pH指示剂吸收值比值法测定硫酸阿托品
- DETERMINATION OF DOPAMINE HYDROCHLORIDE BY pH INDICATOR ABSORBANCE RATIO 盐酸多巴胺的pH指示剂吸光度比值法测定
- These are likely for use in the al-Samud II (ph). 这些发动机用于生产al-SamudII导弹。
- A buffer system resists a change in pH. 缓冲系统对pH的变化是有耐受能力的。
- QUANTITATIVE DETERMINATION OF DIPHENHYDRAMINE HYDROCHLORIDE BY pH INDICATOR ABSORBANCE RATIO METHOD pH指示剂吸收度比值法测定盐酸苯海拉明的含量
- That word is spell with a ph,not an f. 那个字里的f音拼作PH而不是F。
- Timeliness of an indicator is also significant. 指标的及时性也不容忽略。
