The water endurance of earthworms, earthworms loading, sewage concentration and percolation velocity which affected treatment efficiency were investigated.

试验对蚯蚓的耐水能力、蚯蚓负荷、污水浓度以及渗滤速度等因素对污水处理效果的影响进行了初步研究。

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They want to improve career performance by boosting attention and concentration, rather than the boosts in endurance, speed, or strength athletes seek.

FORBES: When 'Study Drugs' Kill (Part 2): Reducing The Risks From Brain-Doping

More and more people will try to do for their attention, concentration, and memory what Lance Armstrong did for his athletic endurance.

FORBES: When 'Study Drugs' Kill (Part 1): How Ambition Becomes Adderall Addiction