Pressure is a serious problem in today’s world.Students in our class are under so much pressure.Some students can’t get on with their classmates;others may worry about their exams.I’m always under pressure,too.My parents want me to be the top student in class.So they send me to all kinds of after-school classes at weekends.Last Monday evening,I had a talk with my mother.I told her I was not lazy.I really felt tired.I needed time to relax.My mother agreed with me at last.
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机译:Overpressure Protection of a Pressure Vessel by System Design through the Application of ASME VIII UG-140 in lieu of a Relief device by an Appropriate Choice of MAWP and/or by Safety Instrumented System
机译:aspectoshistóricosdapressãarterialdeoxigigêniodespirometriarelacionadosàoperaçãoabardarialoxygen pressure of pressure oxygen pressure and spirometry related to abdominal operation