深弧型的独特设计，反光效果更佳。
较低的商品价格暂时起作用，如果这鼓舞央行减息将效果更佳。
Lower commodity prices helped for a while, and may help further if they encourage central Banks to cut rates.
若能在拖板上装一小型动力头，采用砂轮磨削修正则效果更佳。
If the carriage is provided with a small head, the grinding wheel correction effect is better.
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