Pansystolic murmurs begin with s1 , extend throughout systole , and are characteristically uniform in intensity systolic ejection murmurs have been likened to the chug of a steam engine laboring up a hill , while pansystolic murmurs have been likened to the high - pitched wail of the engine ' s whistle 全收缩期杂音与s1同时开始，贯穿整个收缩期，它被比作蒸汽机爬山时发出的“嘎嚓”声，全收缩期杂音则被比作蒸气机气笛的尖啸声。
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Weiss kessel anlagen maschinenbau gmbh is well - known not only in dillenburg with silos of steel , vertical - tube radiant boilers and boiler plants as well as with long - distance heating plants , dust extracting installations and combustion chamber boiler , but also with further offers , like thermal oil , heat plants and / or mechanical boiler furnaces , air and dust extraction technology and steam boilers and steam generators Weiss kessel anlagen maschinenbau gmbh是一家生产不同尺寸燃烧室,除尘装置,远程供热装置,锅炉设备,热油,钢板结构青贮塔,立管锅炉,热设备,蒸气锅炉和蒸气机,机械燃烧锅炉,空气-除尘技术的企业。
