翻译以下三个划线词汇: Salinometer valves ( 1 ) are also fitted to allow samples of water to be drawn off ( 2 ) for testing. Chemical dosing valves ( 3 ) are also necessary so that chemicals can be added directly into the boiler
【简答题】根据下列句子及所给单词的首字母或中文,写出各单词的正确形式(每空限填一词)。 小题1:With exams approaching, I am under a lot of s___________. 小题2:You must make a f____________ plan in case anything happens. 小题3:People can easily become______...