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- protoxylem lacuna 原生木质部腔隙
- Detail of lacuna, showing radiating canaliculi. 骨陷窝放大观察,可见放射走行的骨小管。
- Repair immediately when the lacuna is discovered. 发现缺陷后立即修理。
- There was so much very deep lacuna in his crude big hands. 粗糙的大手上一道道很深的裂口。
- It consists of the protoxylem (formed first) and metaxylem. 包括原生木质部(最早形成的)和后生木质部。
- It is found in protoxylem and first metaxylem tracheids and vessels. 可在原生木质部和初始后生木质部的管胞和导管中见到。
- It is this political lacuna that makes optimists about Brazil so impatient. 正是这块政治上的疤痕使得对巴西的前景很有信心的乐天派们变得像热锅上的蚂蚁,如坐针毡。
- The results show the lacuna is shrinkage porosity with high degree carbon. 结果表明,细小孔洞为富碳的缩松缺陷,为合金熔炼时碳元素引起铝液渣、气污染造成。
- His long reticence temporarily distracted attention from a bigger lacuna. 他始终保持沉默,分散了人们对一个更大缺漏的注意力。
- Protoxylem The PRIMARY XYLEM elements that are formed from the procambium first. 原生木质部:初生木质部的成分,最早由原形成层形成。
- The part of the primary xylem that differentiates after the protoxylem and is characterized by broader vessels and tracheids. 后生木质部初生木质部中不同于原生木质部的一部分,以更宽的导管和管胞为特征
- In seed plants the protoxylem occurs at the innermost edge of the vascular bundles in stems, but external to the later-formed xylem in roots. 在种子植物中,原生木质部发生在茎的维管束的最内方,但在根中,位于后生木质部的外方。
- Annular thickening Rings of thickening laid down on the inner wall of protoxylem vessels and tracheids. 环状加厚:原生木质部导管和管胞的内层环状??厚。
- Objective The clinical characteristics of lacuna encephalon infarction was analysis. 目的分析腔隙性脑梗死的临床特点。
- The results indicated that the protoxylem of Cajanmus cajan in the main root was mostly tetrarched, less pentarched and hexad. 结果表明:木豆主根的初生木质部多为4原型,少数3原型;
- Determine the effect of BBC-containing serum on absorption of lacuna formed by OC in osteoblast and osteoclast co-culture system by toluidine blue staining. 运用甲苯胺蓝染色法观察含药血清对成骨细胞-破骨细胞共育体系中OC形成骨吸收陷窝的影响。
- The results indicated that the protoxylem of Cajanmus cajan in the main root was mostly tetrarched,less pentarched and hexad. 结果表明:木豆主根的初生木质部多为4原型,少数3原型;
- Detail of Haversian system, showing the tiny, spidery canaliculi extending from one lacuna to the next. 高倍观察哈佛氏系统结构,可见如蜘蛛般结构的骨陷窝和骨小管彼此相连通。
- Electron micrograph of a chondrocyte in its lacuna and almost entirely filling the lacunar space. 电镜照片显示软骨细胞充满骨陷窝中。
- Reasons of forming first cracks were foundry lacuna,impurity gathering,lard exiting. 铸造缺陷、杂质元素偏聚和夹杂物的存在是形成早期裂纹源的原因。