"That's not the issue, Dad." I felt as if I were 12 years old, trying to explain why I'd used a crib sheet on a spelling test.
“那无关紧要，爸爸。”我觉得自己像12岁的孩子，在竭力为自己在拼写测验中传纸条作弊找开脱的理由。
The waterproof skin on the outside of some of them may also BE of copper sheet, tarred felt or steel.
其中某些外部防水层也可由铜皮、油毡或钢板制成。
Raw materials for the production of SBR modified asphalt sheet are cheap and easy to get. This sheet is anew type of waterproofing felt. It has a goo…
SBR改性沥青卷材的原材料来源充足，价格比较便宜，是改性沥青防水卷材新品种，有着良好的应用前景和明显的经济效益和社会效益。
Raw materials for the production of SBR modified asphalt sheet are cheap and easy to get. This sheet is anew type of waterproofing felt. It has a goo…
SBR改性沥青卷材的原材料来源充足，价格比较便宜，是改性沥青防水卷材新品种，有着良好的应用前景和明显的经济效益和社会效益。
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