该第一滤芯还包括设于活性炭层上游侧的高纯 铜锌合金层。
The first filter core also includes a high pure copper zinc alloy layer arranged on the upper reach side of the active carbon layer.
排气通道在导入通道的沿搬运方向（X）的上游侧，排出冷却室内的 空气。
The exhaust passage exhausts the air of the cooling chamber at the upper reach along the moving direction (X) of the guiding passage.
悬挂式防渗墙能显著提高堤基抵抗管涌破坏的能力，且防渗墙布置在堤防下游侧比上游侧更有效。
Suspended cut-off wall can effectively increase foundation resistance to piping and it is more efficient when it is situated in land side than in river side.
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