ประโยคภาษาจีน : 中文句子 |
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hùn níng tǔ 混凝土 hòu 后 lì jí 立即 fàng zhì 放置 yīng gāi 应该 yòng 用 shǒu 手 yā shí 压实 liàn tiě 炼铁 huò 或 jī xiè 机械 zhèn dòng 振动 xiāo chú 消除 kòng xì 空隙 |
Immediately after concrete is placed, it should be compacted by hand puddling or a mechanical vibrator to eliminate voids. |