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workability｜可加工性，可使用性rn
work…bench｜工作台＇架＇rn
workblank｜毛坯rn
working area｜作业地带rn
working place｜工作地点rn
working pressure｜工作压力rn
working substance｜工质＇在热力循环中工作的介质＇rn
worm distributor｜螺旋给料机rn
wound tube｜绕管rn
wrought iron sectional boiler｜熟铁片式锅炉rn
y globe valve｜y形＇分叉＇球阀rn
y…branch｜y形支管，分支管rn
year…book｜年刊＇鉴＇rn
yellow brass｜黄铜rn
yielding rubber｜缓冲橡皮rn
YORK｜约克rn
Z…bar｜工字纲rn
ZENNER｜德国真兰计量rn
zone of aerodynamic shadow｜空气动力阴影区rn
zone of negative pressure｜负压区rn
zone of positive pressure｜正压区rn
zone of recirculating low｜空气动力阴影区rn
zone of wake｜尾流区rn
zoning two…pipe water system｜分区两管制水系统rn