Slab cooling resulted in higher oxygencontent in the root environment, which improved root activity.
基质条冷却可提高根基氧含量,这有利于提高根系活力。
2
The high oxygencontent reduces carbon monoxide levels by 25 - 30 percent, according to United State Environment Protection Agency.
根据美国环保局资料,高含氧量可以减少25%-30%一氧化碳生成量。
3
The present invention relates to chemical and environment protection technology, and is especially gradient magnetic field process and apparatus for raising content of oxygen dissolved in water.