And do not use a plastic or canvas sheet.
不要用塑料布或者帆布。
Don't worry about rain. And do not use a plastic or canvas sheet.
不要担心下雨，不要使用塑料或帆布覆盖。
And do not use a plastic or canvas sheet. Heavy coverings will trap moisture and keep the Onions from drying fully.
棉布可以防止太阳把洋葱完全晒干。不要担心下雨，不要使用塑料或帆布覆盖。严实覆盖物可以锁住水分防止洋葱完全晒干。
Groove joints are sealed by sheet steel and wrapped with canvas. This new construction technology improves anti-seepage property as well as expedite construction speed.
对地下连续墙槽段节点采用钢板封口及外包帆布的施工新工艺，提高了构造的抗渗漏性能，也加快了施工速度。
A strong, taut sheet, usually of canvas, attached with springs to a metal frame and used for gymnastic springing and tumbling.
蹦床一张通常由帆布制的结实坚韧的床布，和弹簧一起连接在金属框架上，用于体操跳跃及翻滚。
A strong, taut sheet, usually of canvas, attached with springs to a metal frame and used for gymnastic springing and tumbling.
蹦床一张通常由帆布制的结实坚韧的床布，和弹簧一起连接在金属框架上，用于体操跳跃及翻滚。
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