hard water”- waters high in calcium and magnesiumminerals contributing to hard water formationproblems associated with hard waterSummary This chapter contains sections titled: Definition of Hard Water How Hard Water is Created Problems Associated With Hard Water How Hard Water is Measured Uniform ...
+ as the day is long:非常;一贯地,一如既往地The Free Dictionary例句:Ever since she proposed to me, I've been as happy as the day is long.He's as deceitful as the day is long.work one's fingers to the bone:卖力工作 剑桥英语释义:to work extremely hard, especially for a long time...
Hard water is water that contains high amounts ofCa2+and/orMg2+. Sometimes Mn2+and other multivalent cations are included in the measure of hardness. Note water may contain minerals and yet not be considered hard, by this definition. Hard water occurs naturally under the condition where water ...
From cooking to cleaning, water is an important aspect of everyday life. While you may not feel the effects of drinking hard water, you may notice the impact it has on your home. Over time, hardness in your working water can cause damage to water-using appliances, including your washing ...
machineisthesizeofafathousefly.Itsminiwingsallowittostayintheairandperformcontrolled flighttasks. “It?sextremelyimportantforustothinkaboutthisasawholesystemandnotjustthesumof abunchofindividualcomponents,”saidRobertWood,theHarvardengineeringprofessorwhohas beenworkingontheroboticflyprojectforoveradecade.Afewyear...
She is always there whenever I'm in trouble. see sb.doing/do的用法6.I saw her watering(water)flowers in the garden when I passed by.7.I saw Jim go(go)into the bank just now. lie的用法8.你最好躺下休息。You'd better lie down and have a rest.9.黑龙江位于中国东北部。Heilongjiang ...
We went early so that we could get good seats.The boy is so young that he can’t go to school.Read Para 3 and Para 4 1,What did Aron do after the accident? 2,What does he tell of in the book ? What does "Between a rock and a hard place" mean? He tells of the importance...
lt's certainly possible that it will be too expensive to build reservoirs for some suburbs and communities and we could see an exodus(大批人同时离开)from the region; but that's almost suitable to change, because communities pay for the extremely inefficient processes of pumping in water from ...
You were looking extremely good at the start. M: I blew it! The car was a bit out of control. W: Some people might have given up at that point. M: I was determined to do it, to finish the round. W: So, what now? M: Tomorrow’s going to be tough, much tougher than today...
5. It's hard___(imagine) what the life without water or electricity will be like.相关知识点: 试题来源: 解析 to imagine 该题考查动词不定式作宾语的用法。形容词hard后常接动词不定式作宾语,表示“很难……”。因此,空格处应填入“to imagine”,构成“It's hard to imagine”结构,表示“很难想象”...