查询词典 Sciaenidae

Any of various fishes, chiefly of the family Sciaenidae, that make croaking or grunting sounds.

石首鱼任一种主要属于石首鱼科的鱼类，能发出呱呱声或咕哝声

Type genus of the Sciaenidae: croakers.

石首鱼科的一个模式属；石首鱼。

The most of fish species attributed to Sciaenidae.

资源密度指数CPUE呈现年下降趋势。

The discriminant functions of four Sciaenidae species were established, with accuracy of 98.31%-100%(P1) and 98.36%-100%(P2), and average accuracy of 99.46%.

以逐步判别分析方法建立了4种石首鱼的判别函数，判别准确率分别为98.31%~100%(P1)和98.36%~100%(P2)，综合判别率为99.46%。

By recording the underwater sound of red drum (Sciaenops ocellatus, Sciaenidae) and measuring some physical environmental factors, the relationship between the environmental factors and sound periodicity was studied.

石首鱼发声具周期性，因此以全年水下录音的方法来比较不同环境因子对红鼓鱼发声周期性的影响，结果显示日出与日落都会诱发鱼只增加叫声。

The sound producing system of Sciaenidae is consisted mainly of extrinsic sonic muscle and swimbladder. Because female red drum do not have the sonic muscle, the sonic muscle of young red drum appeared when they were three months old and they were male. Young male red drum started to produce audiable sound at seven months old. The weights of sonic muscles and swimbladders increased with body weights.

石首鱼的发声系统以外接发声肌肉及泳鳔为主，由於雌鱼并无发声肌肉，因此红鼓鱼幼鱼在三个月左右出现发声肌肉者为雄鱼，发育的过程中，发声肌肉、泳鳔的重量随年龄增加而增加，然而雄鱼泳鳔的重量增加情形大於雌鱼。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。