perchn.栖木；高位；杆；河鲈鱼v.栖息；就位；位于Perchermeier佩歇尔迈尔perched rock坡栖岩块perchlorates高氯酸盐perch growth高位增长perched quilt小菱形花纹双层布Percherancier佩舍朗西耶perched water上层滞水perched basin坡栖盆地perchlorether[化] 全氯乙醚perched block坡栖岩块