But a new study shows that songbirds' bones are actually pretty tough. In fact, they're more dense than the bones of mammals of the same size.
可一项新研究显示鸣鸟的骨头其实很结实，其密度也比相同体积的哺乳动物的大。
The study found a 37 percent increase in emergency room visits for people with symptoms of heart failure during a three day period of dense smoke exposure and the following five days.
研究发现，烟雾最浓的三天以及之后的五天暴露于烟雾的人群因心力衰竭症状接受急诊治疗的频次增加了37%。
For UWB is mostly applied in dense multipath indoor circumstance the study on Inter Code Interference (ICI) caused by multipath is very importance for designing a high rate UWB system.
由于UWB主要应用在密集多径的室内环境，所以研究多径效应造成的码间干扰对于设计高速uwb系统非常重要。
These calculated results are in agreement with experiment ones. It shows that these models and algorithm are feasible and can be used to study the dense two-phase flow in a CFB efficiently.
计算结果与前人实验结果相符并表明，采用该模型及其算法模拟循环流化床内稠密气固两相流动是可行的。
These models are used to numerically study the two-phase flow in a Circulating Fluidized Bed (CFB), and detailed results regarding the dense two-phase flow characteristic in a CFB are obtained.
用此模型对循环流化床的两相流动进行数值模拟，得到了较详细的床内流动特性。
These models are used to numerically study the two-phase flow in a Circulating Fluidized Bed (CFB), and detailed results regarding the dense two-phase flow characteristic in a CFB are obtained.
用此模型对循环流化床的两相流动进行数值模拟，得到了较详细的床内流动特性。
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