The H1N1 pandemic was characterized by the emergence of a new influenza virus to which many people had no pre-existing immunity.
H1N 1流感大流行的特点是出现新的流感病毒，而许多人对其并没有预先存在的免疫力。
The phase and morphology of exhausted catalyst before and after microwave radiation-pre- treatment and leaching are characterized by XRD and SEM techniques.
采用X射线衍射（XRD）和扫描电子显微镜（SEM）对微波辐射预处理前后和浸出前后的物相及废催化剂形貌进行了表征。
The pre-Badalahu layer on the bottom of the depression is characterized by chaotic reflections.
前巴达拉胡地震反射构造层具有杂乱反射特征，它填充在拗陷底部；
The molecular structure of the silicone resin pre-and post-blending modification by poly (butyl methacrylate)(PBMA) was characterized by Fourier transform infra-red spectrometry.
采用傅里叶变换红外光谱表征了聚甲基丙烯酸丁酯（PBMA）共混改性有机硅树脂前后的结构特征；
The pre-stressed profiled steel concrete beams used in Shen'guang Institution of Education and Research Project are characterized by big span, small cross-section and complicated technology.
深港产学研基地工程采用预应力型钢混凝土梁，具有跨度大、断面小、技术复杂等特点。
The invention is characterized in that the fibre is firstly pre-dewatered in a dewaterer set before the filling screw rod and is dewatered additionally in the filling screw rod.
本发明的特征在于，纤维在填塞螺杆之前首先在脱水机组中进行预脱水并且然后在填塞螺杆中进行附加地脱水。
The prose of Pre-Qin Time, Characterized by historical prose and the prose of various schools with grand style and fine art, stays as the forerunner of Chinese prose.
先秦散文以历史散文和诸子散文的庞大气势和精妙笔法立于中国散文的源头 ，该文着重对历史散文和诸子散文的高超写作艺术加以描述。
The prose of Pre-Qin Time, Characterized by historical prose and the prose of various schools with grand style and fine art, stays as the forerunner of Chinese prose.
先秦散文以历史散文和诸子散文的庞大气势和精妙笔法立于中国散文的源头 ，该文着重对历史散文和诸子散文的高超写作艺术加以描述。
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