trace quantity meaning in English
跟踪量
Examples
- The rest of the chemical elements occur in only minor or trace quantities .
其余的化学元素仅以少量或微量出现。 - Treating combined sewage effluent from a secondary treatment plant, the process achieved 94.5% cadmium removal for the trace quantities present .
用这种方法处理二级处理厂排出的综合下水，可除去水中含镉量的94.5。 - Standard test method for iron in trace quantities using the ferrozine method
使用锌铁合金法测定微量铁的标准试验方法 - Standard test method for iron in trace quantities using the 1 , 10 - phenanthroline method
用1 , 10 -菲咯啉法测定痕量铁值的标准试验方法 - Standard test method for trace quantities of carbonyl compounds with 2 , 4 - dinitrophenylhydrazine
使用2 4 -二硝基苯肼测定羰基化合物痕量的标准试验方法