As shown in Table 1, system demonstrations started four to six weeks into the construction phase.

如表1所示，系统演示开始了四到六周时，我们就进入了构建阶段。

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Phase II, which started in March, is a six-month, ＄636,000 program to demonstrate a rudimentary, 3-inch flapping-wing air vehicle system.

从2008年3月开始的第二阶段，该公司将利用6个月时间和63.6万美元对这种3英寸扑翼飞行器系统进行论证。

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Chapter six analyzes phase equilibrium and phase rule of the polycomponent system using the principle of equilibrium stability.

第六章利用平衡稳定性原理分析了多组分系统的相平衡，相律。

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