It's common to see a utilization pattern showing GC activity only at the beginning of the pattern.
利用率模式只在模式开始时显示GC活动，这一点很常见。
The pattern of aeration duct plays an important role in the efficiency and uniformity of mechanical aeration utilization for grain storage.
通风地槽的形式对粮仓机械通风的效率和均匀性等设计指标具有重要作用。
Result showed that the mixed pattern can increase the economic benefit and significantly improve land utilization, which can be popularized in the eastern mountain areas of Heilongjiang Province.
结果表明：这一混交模式可以大大提高经济效益，使林地利用率得到显著提高，是值得在黑龙江东部山区推广的混交模式。
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