相对年龄

"Despite evidence that the incidence of stroke increases with age, outcome from medical treatment is worse in the elderly, and early surgical outcome is reasonable in octogenarians, clinicians still have doubts about the overall benefit of CEA in these patients," the authors write.

尽管有证据显示中风会随著年龄增加老年人治疗效果差，再加上八十几岁的病人早期手术是合理的，但是临床医生仍然对八十岁以上的老人进行CEA的总体利益存有疑虑，作者认为，这些八十岁以上的病人CEA 之后的长期相对生存率好於对照组，不会因为年老对CEA造成危险，而且做了CEA可能活得更长久。

The author analyses factors constructing sexualities which influence female bodies, including age, gender, sexual experience, experience of contraception and pregnancy, mother and sisters, sexual partners, mass media, commercial agencies, as well as the imagined western culture, Chinese traditions and 'male' as a category.

作者同时分析了女性的身体和性得以建构的具体情境：个体生命历程中的年龄、性别、性经验、生育等因素，生活空间中的以母女、姐妹、性伴侣为中心的关系性因素，传媒、商家、研究所创作的话语性因素，以及是女性所感受到的、相对于想象的西方文化与传统而存在的中国现时文化的因素。

Additionally, some shortages and problems about sea-level researches are listed, and preliminary improving measures concluded include:(1)using more precise dating technology to minimize errors;(2)carrying Out researches on tectonically stable locations;(3)adopting more precise sea-level indicators such as microatolls and tubeworm encrustations.

最后还指出了研究过程中存在的主要问题与不足，并初步总结出一些改进措施：①使用高精度的定年技术，减少年龄误差；②在构造相对稳定的海岸段研究古海平面变化；③尽量采用高精度的标志物，如微环礁、管形虫壳等。

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。