目的了解婴幼儿条栅视力的发育情况。
Objective To study the developmental trend of the binocular grating acuity of preschool children.
障碍物空隙率、半径、空隙宽度及条栅宽度对冲量场的影响非常显著，而它们之间的交互作用几乎没有什么影响。
The interspaced ratio, radius, interspaced width and bar grating width of obstructions affected the remarkably, whereas the interaction between these variables affected very little.
任何可移动的在甲板上的步行区必须带栅条。
Any removable pedestrian flooring on deck to be of grating type.
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