离子: ion指数: index number; index氢离子指数: hydrogen exponent; hydrogen ion exponent; hydrogen ion index; ph氢离子指数计: meter氢氧离子指数: hydroxyl exponent氢离子指数试纸: ph test paper; phtestpaper子指数: subindex太阳黑子指数: solar spot index氢离子指示剂: hydrogen ion indicator; hydrogen-ion indicator一篮子指数买卖盘: index basket order测氢离子指示剂: hydrogen ion indicator快中子指数实验装置: fast exponential experiment离子置换指数: index of ionic replacement掣子指: latch finger子指令: waste electrical and electronic equipment directive金属离子浓度指数: metal ion concentration exponent氢离子浓度指数: hydrogen ion exponent; ph值,氢离子浓度指数: phpotentialofhydrogenphph氢离子负指数指示剂: ph indicatorph值氢离子浓度指数: ph potential of hydrogen氢离子负指数指示剂: ph indicator phph索伦森氏标, 氢离子浓度指数: sorensen scale电子指令: electronic command电子指南针: digital compass; jfw01浮子指示计: float gauge
