单词	scupper drain
释义	DictionarySeescupper scupper drain scupper scupper, 2 1. An opening in a wall or parapet that allows water to drain from a roof. 2. A device placed in such an opening to prevent clogging of the drain.
随便看	pulse oximeter plethysmograph pulse oximetry pulse oximetry waveform systolic blood pressure pulse pair resolving time pulse pairs per second pulse pair timing pulsepak pulse parvus pulse path failure table pulse path list pulse pattern generator pulse pattern generator for frame transfer pulse per inch pulse period pulse per minute pulse per second pulse-phase modulation pulse photometry pulse point pulse points pulse polarization binary modulation pulse polio immunisation programme pulse position amplitude modulation reservation request control mechanism reservation request form

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