去氧

Hypoxia inhibits a variety of K+ channels in the type Ⅰ cells of the carotid body, in a seemingly species-dependent manner, and the resultant membrane depolarisation is sufficient to activate voltage-gated Ca2+ entry leading to neurosecretion and afferent discharge.

低氧可抑制颈动脉体Ⅰ型细胞中的多种K+通道，这种作用可能有种属差异；K+通道的抑制使膜电位去极化，启动电压依赖性Ca2+内流，最后导致神经分泌和传入放电。

Our results suggest that both epinephrine and noradrenalin are meaningful for unders able to produce reactive oxygen which may induce higher reactivity of antibody.

肾上腺素和去甲肾上腺素通过自氧化所产生的氧自由基攻击抗体很可能是造成抗体活性增强的原因。

The results show that the zinc coating is eroded mostly, and some red rust and black rust appear on the substrate in the environment of oxygen supplied intermittently.

结果表明：在间歇通O2的情况下，锌层大部分被腐蚀，而且在基体上有一些红锈和黑锈产生，镀锌板表面的腐蚀产物呈现着不均匀的针状物；而在间歇通N2时，镀锌板的锌层脱落面积较少，基体上没有产生红锈，腐蚀产物呈大块状；在间歇通O2和通N2的情况下，镀锌板的腐蚀速率先增后降，在200 h时，前者的腐蚀质量损失速率是后者的2倍左右；镀锌板附着库尔勒泥浆时的腐蚀过程受氧去极化过程控制。

Compound 5 reacted with Grignard reagent of 9 followed by cyclozation to afford target molecule 11. All intermediates and target product were confirmed by IR, 1H NMR and HRMS.

化合物5与9的格氏试剂偶联和关环反应完成目标产物3-羟基－10-去甲基－12-甲氧基－13-甲基罗汉松烷(11)的全合成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。