Under the same chrmatographic condition, gas chromatography quantitative analysis of the butachlor and simetryne were discribed. 首次报道了丁草胺和西草净在同一色谱条件下的气相色谱定量分析。
The spectral condition number is a useful indicator of the quality of a preconditioner. 谱条件数是反映预处理因子性态是否良好的一个有效指标。
