The relationships between the theoretical density and porosity of the composites and the repetitioncycle are discovered.
从理论上揭示了复合材料的浸渍-裂解周期与材料的理论密度和理论孔隙率之间的关系。
2
Oxide film in the expected tone of such color can be obtained by controlling current density, square—wave cycle period and number of the repetition cycles.
通过调节电流密度，方波周期和通电次数等可获得预期色调的着色膜。
3
So many of us complain about the boring cycle of repetition present in our weekly routines, yet we choose no clear course for correction.