Please write about the effect of tree planting on air in a city.
请写写植树对城市空气的作用。
Cold air also has a drying effect, which can increase the risk of dehydration.
冷空气也有干燥的效应，会增加你脱水的危险。
This combined effect reduces the amount of air trapped in the lungs during exercise.
这种联用效果降低了患者练习时滞留肺部的空气数量。
The cut effect of gear wave wall on explosion in air is analyzed.
分析了空气中爆炸时挡波墙对冲击波的削波作用。
The air-sea interaction has certain effect on slowing down the phase speed of the wave.
海-气相互作用在减慢激发波的移速方面也有一定作用。
Objective:To evaluation of disinfect effect on air in the operation room.
目的：对手术室空气消毒效果进行评价。
The radiation effect of high density polyethylene films in the air was studied.
本文研究了空气中高密度聚乙烯薄膜的辐射效应。
It was found originally that environment atmosphere could effect the entrained air content of concrete.
首次发现环境气压能够影响混凝土的含气量。
Objective: To investigate the method and effect of air disinfecting in the operating room .
目的：分析手术室空气质量监测结果。
The wide variety of plants will carry out an air cooling effect as well.
建成后的公园，植物品种丰富，有洗尘降温的作用。
The wide variety of plants will carry out an air cooling effect as well.
建成后的公园，植物品种丰富，有洗尘降温的作用。
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