讨论了四元数量子力学中带有谱约束的最小二乘解反问题，得到了此问题有解的充分条件。
The inverse least square problem with spectral constraints is also studied and a sufficient condition is given for its solvability.
第二天早晨庞德烈先生起床后正好赶上载他去码头乘轮船的四轮马车。
Pontellier was up in good time to take the rockaway which was to convey him to the steamer at the wharf.
本文利用偏最小二乘回归分析方法和四分模型找出影响顾客满意度的关键因素。
This paper use partial least squares regression analysis and quarter of the model to identify the key factors affecting customer satisfaction.
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