羟基 | qiǎng jī | hydroxyl group -OH | |
羟基丁酸 | qiǎng jī dīng suān | gamma-Hydroxybutyric acid, GHB | |
羟基磷灰石 | qiǎng jī lín huī shí | hydroxy-apatite (phosphatic lime deposited in bone) | |
羟自由基 | qiǎng zì yóu jī | hydroxyl radical |
1 | These hydroxyl radicals are capable of breaking down contaminants. | |
2 | The neurotransmitter serotonin, for example, is thought to produce feelings of calmness, relaxation, and contentment. | |
3 | Like the central nervous system, the gut brain makes use of neurotransmitters such as serotonin and dopamine. | |
4 | Mind you, the think-before-you-buy effects of serotonin wear off after a few hours. | |
5 | Yet exercise isa known mood enhancer, raising the brain' s levels of serotonin andendorphin. |