死亡率

Finally, the death rate in most developed co untries declines steadily because people's standards of living are raised and health care improves.

最后，许多发达国家中的死亡率稳步下降，因为人们生活水平提高了，卫生保健改善了。

Methods Fifty F-344 rats were divided into four groups, GM only、PAA+GM、PAA only and saline control. ABR thresholds at different frequencies were measured at different times and hair cell losses were numerated. Two-dimensional diffusion assays in the culture medium were performed to evaluate the effect of PAA on the antimicrobial activity.

选用健康F-344大鼠50只，随机分4组：Ⅰ为GM、Ⅱ为PAA+GM、Ⅲ为PAA、Ⅳ为生理盐水对照组；通过观测4组大鼠不同时期、不同频率听性脑干反应（auditory brainstem respons，ABR）阈值的改变；计数耳蜗毛细胞死亡率，以观察PAA对F-344大鼠GM耳蜗毒性的拮抗作用；用双向扩散血清培养基检测法观察PAA 对 GM 抗菌活性的影响。

The animal model of MODS was established successfully by occluding the superior mesenteric arteries of rats for 45 minutes.

模型组2在致伤因素、器官功能、病理形态和死亡率等方面均符合MODS模型的标准，是较理想的模拟临床肠缺血再灌注损伤诱发MODS的模型。

Methods and Results— Preformed fibrin microemboli were injected into the middle carotid artery of mice, occluding downstream perfusion and causing severe infarction and 50% mortality within 48 hours.

方法和结果，预纤维微栓子注入颈内动脉中的老鼠，阻断灌注及下游造成严重心肌梗塞和50 ％的死亡率在48小时内。

By 2010, deaths there are expected to start outnumbering births, so from that point immigration will account for more than all its growth.

预计到2010年，死亡率将高于出生率，因此，由前述论点推知，较之整体的人口成长，移民将更加说明问题。

Mean period of oviposition each adult is 32.2±9.04 days at 29℃ and mean number of eggs oviposited per female is l62±11.32 eggs at 30℃ high moisture.

在24—30℃条件下，卵历期为4—7天，孵化率为60%以上；在9—10℃时为12天，卵的死亡率80%以上。幼虫历期随龄数增多而延长。在20℃条件下，幼虫能形成蛹。

In rural areas of Beijing, the maternal mortality rate plunged by 72 percent.

在北京乡镇，产妇死亡率下降了72%。

In rural areas of Beijing, the maternal mortality rate plunged by 72 percent.

在北京的乡村地区，孕产妇死亡率高达72%。

In rural areas of Beijing, the maternal mortality rate plunged by 72 percent.

在北京郊区，产妇死亡率下降了72%。

In rural areas of Beijing, the maternal mortality rate plunged by 72 percent.

每100000人中787个。在北京的乡村地区，产妇的死亡率高达72%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。