You become a “maker” when you place an order and it does not trade immediately, so your order stays in the order book and waits for someone else to fill/match with it later.
テイカーが暗号資産の最良の買値（アスク）または売値（ビッド）を選択し、オーダーブックで利用可能な価格と数量で発注すること。