球形阀阀座磨损后，可用一钢球放到阀座上，用金属棒轻轻敲击钢球数次，直到球阀与阀座密合为止。
After the ball valve seat wear and tear, can be a ball into the seat, and with the rod lightly tapping ball several times, until the valve with the valve seat up close together.
擦伤，磨损轻轻地擦或抓；擦。
通常一女武神将举行剑或矛，严重磨损或轻轻盔甲，骑马。
Usually a Valkyrie will hold a sword or lance, wear heavily or lightly armor, and ride a horse.
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