" to stop the public being exposed to organic pollution , like bacteria which can cause diarrhea , we add chemicals again in mid - treatment . the mid - treatment tanks all have automatic warning systems . 金門自來水廠廠長(zhǎng)翁自保表示,為了不讓民眾遭受到生物性的污染,像是會(huì)拉肚子的菌類,所以我們會(huì)在中途加入化學(xué)物質(zhì),在中間的水塔都有一些自動(dòng)加藥系統(tǒng)。
百科解釋
The Automatic Warning System (AWS) is a form of limited cab signalling and train protection system introduced in 1956 in the United Kingdom to help train drivers observe and obey signals. It was based on a 1930 system developed by Alfred Ernest Hudd and marketed as the "Strowger-Hudd" system.