preopercle

基本解释

• 前鳃盖骨

同根派生

英汉例句

• The appearance of 2 large and sharp spines at lower angle of external edge of the preopercle is also the symbol of the larval Dentex tumifrons.
  前鳃盖骨后缘下角出现2个扩大且尖锐的棘，是鉴别黄鲷仔鱼的标志之一。
• operculum Bony gill cover; comprised of four bones: opercle, preopercle, interopercle and subopercle.
  鳃盖鳃盖骨；包含四个硬骨；鳃盖骨、前鳃盖骨，间鳃盖骨与下鳃盖骨。
• interopercle One of the bones comprising the operculum; bordered antero-dorsally by the preopercle and postero-dorsally by the opercle and subopercle.
  中鳃盖组成鳃盖的硬骨之一；毗邻背部前方藉由前鳃盖骨与后背面藉由鳃盖与子鳃盖。
• gill cover The bones of the head that cover the gill chamber, comprising the preopercle, opercle, subopercle and interopercle; the operculum.
  鳃的盖覆盖鳃室的头部的硬骨，包含前鳃盖骨，鳃盖，子鳃盖与中鳃盖；鳃盖。
• suprapreopercle A small, paired dermal tube bone carrying the lateral line canal across the gap between the preopercle and supratemporal, often absent.
  上前鳃盖骨一种小的、成对的、携带侧线管的表皮管状硬骨，横越在前鳃盖骨与上颞骨之间的空隙，时常不存在。