查询词典 brachiopods

Prismatic layers are parts of the secondary shells of fossil brachiopods as are fibrous layers, the former, however, preserved better than the latter.

壳体次级纤维层和次级棱柱层虽然同是腕足化石次级壳体的组成部分，但前者遭受成岩后生作用的改造程度高于后者。

Sponges, corals and brachiopods (a once-widespread group that look a bit like bivalve molluscs) were particularly badly hit.

海绵动物、珊瑚类和腕足类动物（一个曾经分布广泛的种群，看起来有点像双壳类软体动物）尤其惨遭重创。

Sichuan-Chongqing area ; late middle Permian ; Brachiopods ; extinction ; Pre-Lopingian event

川渝地区；中二叠世晚期；腕足动物；灭绝；前乐平世事件

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。