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low grade cement pile 低标号混凝土桩
A low number; a low grade of oil. 一个小的数; 低级油
low grade cement 低标号水泥
John is down on his teacher because she gave him a low grade. 约翰恨他的导师，因为她给他打了低分。
My son mucked up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
Became the largest producer of high grade cement in Chongqing. 腾辉水泥成为重庆最大的优质水泥生产商。
Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
He is a bit let down by the low grade he got. 这次成绩不好, 他有点气馁。
Low grades are get ting Helen down. 考分很低使海纶闷闷不乐。
My son muck up the car engine by using cheap, low grade gasoline. 我的儿子使用便宜的低级汽油,汽车引擎损坏了。
The teacher remonstrated with the boy about his low grade. 教师告诫男孩,说他的分数太低了。
My son muck up the car engine by using cheap,low grade gasoline. 我的儿子使用便宜的低级汽油，这把汽车引擎损坏了。
The teacher remonstrated with the boy about his low grades. 教师告诫男孩，说他的分数太低了。
Low quality is always a problem; low grade may not be. 质量低常成为一个问题，但等级低则不是。
Untreated low grade rejection also poses an increased risk for CAV. 为CAV未处理的低等级拒绝也形成增加的风险.
Non Ai lenses can mount on low grade nikon DSLR body??? 用尽旧镜微距能力，专人指导使用微距滤镜，拍尽微距世界！
Flyash is ground and added excitant, then put in the conctete, at last added proper reducing water agent.As the result, both th earlier and late strength are over the strenth of the same grade cement. 将粉煤灰粉磨并加激发剂处理后，掺入砼中，再加入适当减水剂，粉煤灰砼的早、后期强度均接近或超过同标号基准砼的强度。
He tore up his test paper so that his mother wouldn't see his low grade. 他把自己的考卷儿撕了,这样他的母亲就不会看到他得的低分数。
Low grades are getting him down. 低分数使他郁郁不乐。
He tore up his test paper so that his mother would not see his low grade . 他把自己的考卷儿撕了，这样他的母亲就不会看到他得的低分数。