单词	保压阀
释义	保压阀pressure retaining valve
随便看	global character mode global circulation global circulation model global circulation model (=gcm) global city global civic education global civil society global climate global climate change global climate system global climate variation global climatic observation system global climatic observation system{=gcos} global coherent memory global commons global communication global communication coverage global communication dominance global communications system global communications system (globecom) global communications system [globecom] global communication system global communication system{=globcom} global community global companies