the phragmacone is the chambered portion of a belemnite shell.
闭锥是箭石壳的分腔部分。
scientists discovered a well-preserved phragmacone in the limestone formation.
科学家在石灰岩层中发现了一个保存完好的闭锥。
a septum divides each chamber within the delicate phragmacone.
隔板将精致的闭锥内的各个腔室分开。
the fossil exhibits a distinct phragmacone structure typical of orthoconic nautiloids.
该化石显示出直角石���鹉螺典型的明显闭锥结构。
marine paleontologists study the growth rings visible on the phragmacone.
海洋古生物学家研究闭锥上可见的生长环。
gas filled the chambers of the phragmacone to regulate buoyancy.
气体充满闭锥的腔室以调节浮力。
the long phragmacone aided the creature in maintaining horizontal balance.
细长的闭锥帮助这种生物保持水平平衡。
geologists identified the strata based on the recovered phragmacone fossils.
地质学家根据回收的闭锥化石识别了地层。
a siphuncle runs through the center of the cylindrical phragmacone.
体管贯穿圆柱形闭锥的中心。
the internal phragmacone is often the only part found during excavation.
内部闭锥通常是挖掘过程中发现的唯一部分。
museum visitors admired the massive size of the calcified phragmacone.
博物馆参观者惊叹于钙化闭锥的巨大尺寸。
the phragmacone is the chambered portion of a belemnite shell.
闭锥是箭石壳的分腔部分。
scientists discovered a well-preserved phragmacone in the limestone formation.
科学家在石灰岩层中发现了一个保存完好的闭锥。
a septum divides each chamber within the delicate phragmacone.
隔板将精致的闭锥内的各个腔室分开。
the fossil exhibits a distinct phragmacone structure typical of orthoconic nautiloids.
该化石显示出直角石���鹉螺典型的明显闭锥结构。
marine paleontologists study the growth rings visible on the phragmacone.
海洋古生物学家研究闭锥上可见的生长环。
gas filled the chambers of the phragmacone to regulate buoyancy.
气体充满闭锥的腔室以调节浮力。
the long phragmacone aided the creature in maintaining horizontal balance.
细长的闭锥帮助这种生物保持水平平衡。
geologists identified the strata based on the recovered phragmacone fossils.
地质学家根据回收的闭锥化石识别了地层。
a siphuncle runs through the center of the cylindrical phragmacone.
体管贯穿圆柱形闭锥的中心。
the internal phragmacone is often the only part found during excavation.
内部闭锥通常是挖掘过程中发现的唯一部分。
museum visitors admired the massive size of the calcified phragmacone.
博物馆参观者惊叹于钙化闭锥的巨大尺寸。
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