In practice, multiple copies of an application usually do not run at the same rate, and application testing and evaluation is required to establish the real rates.
Multiple studies show that being outdoors (or even just looking at pictures of natural landscapes) reduces stress and causes heart rates to decrease.
户外多种多样的活动(或仅仅的欣赏自然风景画)可以减少压力和降低心跳比率。
3
Beaulieu and colleagues measured nitrous oxide production rates from denitrification in 72 streams draining multiple land-use types across the United States.