... expansion rail joint 温度调节器 ; 钢轨伸缩调节器 expansion-joint filler 伸缩缝填料 expansion ball joint 球形补偿器 ...
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premoulded expansion joint filler 预制伸缩缝填料
expansion joint filler 伸缩缝填料
The seepage controclling effects owing to factors of anti seepage materials, structure style of canal lining, expansion joint filler and construction machinery were studied by experiments.
研究了渠道防渗材料，衬砌结构形式，伸缩缝填料，施工机具对渠道防渗效果的影响。
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