【判断题】
汽车前轮定位不准，特别是前束不正确，对燃油消耗影响很大
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我国规定，在汽车动力性试验时一般为半载
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不同型号汽车的燃料经济性不能用百公里油耗来衡量
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发动机曲柄连杆机构长度尺寸链及配气相位的角度尺寸链在修理中发生稍小变化，将会影响发动机修理质量
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汽车车轮制动器间隙的调整应在轮毂轴承预紧度调好后进行
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汽油发动机燃烧是化学能转化为热能的过程
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