Using differential pressure switches, it is possible to, e. g. , transmit readings to a central control unit as soon as the filter has attained a specified degreeofcontamination.
使用压差开关一旦过滤器达到特定污染等级，可以传送读数至中央控制单元。
2
Conclusion: the degreeofcontamination of pathogenic microorganism on entry waste raw material in ports of Guangdong is relatively high. It also jeopardize the environmental hygiene of port.
结论：广东口岸入境废物原料中病原微生物污染程度较高，对口岸环境卫生也造成了危害。
3
Robert Twilley and Guerry Holm of Louisiana State University (LSU) are investigating the degree to which two delta wetland characteristics may help mitigate oil contamination.