Sphenopsida是什么意思

网络释义

用法例句

A New extraction and stability of yellow pigment from Ribes Diacanthum is reported.

从楔叶茶果实中提取了食用黄色素 ,研究了该黄色素的性能及稳定性。

Based on materials from Upper Devonian (Famennian) Wutong Formation, Shizikou Section, Chaohu City of Anhui Province, the leaf shape and venation of Sphenophyllum lungtanense Gothan et Sze are restudied.

基于安徽省巢湖市狮子口剖面上泥盆统(法门阶)五通组的标本,对龙潭楔叶Sphenophyllum lungtanense Gothan et Sze的叶形和脉式等重要特征取得了新认识。

Further Study of Sphenophyllum Lungtanense, with a Discussion on the Evolution of the Late Devonian Sphenophyllales in South China;

龙潭楔叶的再研究——兼论华南晚泥盆世楔叶目的演化

A SPHENOPHYLLEAN PLANT WITH HETEROPHYLLOUS FOLIAGE OF "SPHENOPHYLLUM THONII" GROUP FROM SHANSI FORMATION IN NORTHERN SHANXI

晋北山西组具异型叶的“畸楔叶”组植物

R. russatum, R. cuneatum and R. fastigiatum are rare to be seen in other places in NW Yunnan, which could be considered as the conservation targets in the Lashihai region.

其中紫蓝杜鹃、楔叶杜鹃和密枝杜鹃在滇西北其它地方少见，可列为保护目标。

cleat hook, for blind cords, of base metal

百叶窗拉绳的楔子钩,贱金属制

"Liver: Largest gland in the Body, with several lobes."

肝:脊椎动物体内最大的器官,呈楔形叶状。

To fix in place or tighten with a wedge.

把…楔住，把…楔牢

wedge breech mechanism

楔形炮闩，楔式闭锁机

To connect with a tongue-and-groove joint.

楔紧用楔形部件使密接

AN ANALYSIS OF THE WEDGE MECHANISMS AND THE DESIGN OF A WEDGE MECHANISM WITH DUPLEX WEDGE ANGLES

斜楔机构的分析及双楔角斜楔机构的设计

base-plate wedge

基片楔突 -噬菌体

A wooden wedge for cleaving rock.

木楔用来劈裂岩石的木楔

A heavy hammer having a wedge-shaped head and used for splitting logs.

楔手重锤有楔形头的重锤，用于劈圆木

A wedge or other braking device.

楔子，垫石楔子或其他刹车装置

A wedge - shaped charge pointing downward.

楔形普通图记一种头朝下的楔形图章

One of the triangular characters of cuneiform writing.

楔形字楔形方字的三角形字之一

Spaceband: Spacing pieces used by line-casting machines.

活楔:行式排铸机所用的楔。

Forming principle of heavy section shrinkage cross wedge rolling by single wedge

楔横轧一次楔大断面收缩率成形机理

A wedge-shaped piece of material, such as wood, that is fastened onto something, such as a spar, to act as a support or prevent slippage.

楔子，防滑木楔状物，如木楔子，为了支撑或防滑固定在某物上，如翼梁

Study on working mechanism and conditions of wedge caulking and wedge refunding of wedge typed overrunning clutch with assistant-ring

带辅助环的楔块式超越离合器工作机理及楔紧和退楔条件的研究