Single cover retaining screw mounted on top of the indicator for easy access.

在流量指示器上安装一个盖子固定螺丝，便以打开进入。

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Cover the bottom with pebbles. Screw on the lid. Decorate the lid, if you wish.

在罐底铺满小鹅卵石，凝上盖子。愿意的话，还可以装饰一下瓶子。

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Put the absorbent cotton back into the tube, counterclockwise screw the tube on the cover tightly.

将吸透水的吸水棉放进套管内， 将套管逆时针方向旋紧在顶盖上。

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