On that occasion, the Secretary-General and his Special Envoy, Mr Ray Chambers, challenged the international community to embark on an ambitious plan to reduce malaria deaths by the end of 2010.
当时，秘书长和他的特使Ray Chambers先生要求国际社会执行一个到2010年底降低疟疾死亡率的宏伟计划。
Electromagnetic theory, statistical plane wave theory and the ray tracing theory of reverberation Chambers are studied in Chapter III.
第三章论述了混响室的电磁场理论、混响室平面波统计理论和混响室射线理论。
Electromagnetic theory, statistical plane wave theory and the ray tracing theory of reverberation Chambers are studied in Chapter III.
第三章论述了混响室的电磁场理论、混响室平面波统计理论和混响室射线理论。
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