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- operational pH scale 操作PH范围
- Despite this diversity and the fact that certain organisms can grow at extremes of the pH scale, generalities can be made. 纵然有差异而事实上有些生物是可以在极端的酸碱度范围上生长，仍可以得到一些归纳结果。
- A measure of the acidity or alkalinity of a solution, numerically equal to7for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity.The pH scale commonly in use ranges from0to14. 酸碱度溶液酸性或碱性的度量，数值等于7的为中性溶液，数值增大表示碱性增大，数值减小表示酸性的增大。ph值范围一般在0到14之间
- A measure of the acidity or alkalinity of a solution, numerically equal to7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from0 to14. 酸碱度溶液酸性或碱性的度量，数值等于7的为中性溶液，数值增大表示碱性增大，数值减小表示酸性的增大。PH值范围一般在0到14之间
- Using the general esterase activity and the sensitivity to dichlorvos (DDVP) as criteria, the esterase obtained from Yumai 39 is determined to be the optimal enzyme for the detection and the optimal operation pH value is 6.5. 以总酯酶活力和对敌敌畏的灵敏度为指标;确定了豫麦39中提取的植物酯酶为最佳的农药检测用酶;其最佳检测pH为6.;5
- The squadron is not yet operational. 飞行中队尚未能马上行动。
- That word is spelt with a PH, not an F. 那个字里的f音拼作PH而不是F。
- The next year the work went ahead on a large scale. 第二年这项工作就大规模进行了。
- The project as being undertaken on a small scale. 这个工程在小规模地进行着。
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- Scale the fish before cooking them. 烧鱼之前先去掉鱼鳞。
- The statue was made to scale, one inch to a foot. 这座塑像是按比例做的，大小是真人的十二份之一。
- a blood disorder characterized by a lower concentration of hydrogen ions in the blood (which rises above 7.45 on the pH scale) 血液中氢离子浓度降低的一种血液混乱症
- I weighed in at100 pounds on the scale today. 我今天在磅秤上称的体重为100磅。
- It is hard to imagine the scale of the universe. 很难想像宇宙有多大。
- They are preparing for war on a large scale. 他们正在大规模地备战。
- He learned to scale a rock face from his father. 他从他父亲那儿学得攀登崖面的技巧。
- This map is drawn to a scale of 1 inch to 50 miles. 这幅地图是以一英寸代表五十英里的比例绘制的。
- a blood disorder characterized by an increased concentration of hydrogen ions in the blood (which falls below 7 on the pH scale) 血液中氢离子增加的一种血液混乱症
- These are likely for use in the al-Samud II (ph). 这些发动机用于生产al-SamudII导弹。
