筛管

细胞程序性死亡（Programmedcelldeath，PCD）与导管和筛管的分化、繁殖、衰老、超敏反应等过程紧密相关。

Programmed Cell Death ( PCD ), a physiological cell death process , is associated with the differentiation of vessel and sieve tube , the propagation , senescence , the hypersensitive reaction of plants , and so on .

类型Ⅰ：筛管分子端壁倾斜，筛域数多，都为复筛板，韧皮射线大多为单列。卫矛属（Euonymus）的5种植物属于这一类型；

In type ⅰ, as seen in 5 species of Euonymus , the sieve tube elements have more inclined end walls and numerous sieve areas ( compound sieve plates ), phloem rays are almost uniseriate .

基于ANSYS的割缝筛管强度分析

Strength Analysis of Slotting Screen with ANSYS

描述在Visualc++6.0开发平台上，基于OpenGL的利用激光切割割缝筛管的仿真实现方法。

The realization of cutting slotted pipe with laser in virtual system based on OpenGL with the tool platform of Visual C + + 6.0 was described .

用PCL-839步进电机控制卡开发石油筛管的数控系统

Research on Petroleum Slotted Pipe by PCL-839 Stepping Motor Control Card

小脉筛管分子的分化是通过P-蛋白体（P-proteinbody）的形成和液泡系的溶酶体作用，并伴之以高尔基体的分泌作用。

The sieve tube members in the minor leaf vein are differentiated through the formation of the P-protein body , the function of the lysosome in the vacuome and the secretion of the dictyosome .

甘蔗茎韧皮部细胞ATP酶活性定位于筛管、伴胞质膜、伴胞核、小囊泡、充分发育的液泡膜和P&蛋白上。

In the phloem cells of sugarcane stem , ATPase activity was localized on the plasma membrane of sieve elem - ents and companion cells , the nuclei , vescles , full development vacuole of companion cell and P-protein .

实体筛管完井技术在氮气钻井中的应用DF1井氮气泡沫欠平衡钻井实践与认识

Application of stuffed screen pipe completion technology in N_2 drilled wells Practice and Experience on Under-balanced Drilling with Nitrogen-foam

针对东海平湖油田的特点，确定了该油田A3水平井合理的完井方法是：割缝衬管先期完井和金属纤维防砂筛管后期防砂。

According to the properties of Pinghu oilfield in East China Sea , the well completion method of A3 horizontal well is determined as initial well completion by slotted liner and later sand control by metal fibre screen pipe .

电子显微镜观察发现，在病株嫩枝和叶柄韧皮部筛管细胞超薄切片中，存在着大量的类菌原体（MLO）。

A lot of mycoplasma-like organisms ( MLO ) were observed within the ultrathin sections of sieve cells in the infected tender shoots or phloem tissues with electron microscopy .

在电子显微镜诊断中发现有MLOs靠近寄主筛管细胞的细胞壁和穿进寄主细胞壁的现象。

Through the electronic microscope , the cells of the pathogen ( MLOs ) arefound penetrating the sieve tube 's cellular wall .

子叶维管束发育成熟约在受精后的20d，成熟时细胞核消失，次生壁向内延伸，筛管分子的细胞壁形成网纹结构。

Developing mature of vascular bundle about 20 days after fertilization . The cells nucleus disappear in this period , secondary wall extended toward the inside . Sieve element formed network .

该井二开井段使用聚合物钻井液，三开井段使用无固相KCl聚合物钻井液，采用无固相超低渗透技术保护油层，满足了筛管完井对油层保护技术的要求。

Polymer drilling fluid was used in the second interval , non-solid KCl / polymer drilling fluid was employed in the third hole , and incorporated with super-low filtration technique to protect the productive layer , requirements of screen section completion were satisfied .

2002年，针对辽河油田杜84特稠油区块出砂严重的难题，进行现场调研，开展相关的技术攻关，研制开发出问GQΦ146mm筛管。

In the year 2002 , field investigation had been carried out for sand producing problem in Du 84 super - heavy oil block in Liaohe oil province , and GQ φ 146 mm screen pipe had been developed .

DAPI荧光染色镜检结果表明，这种已表现出丛枝的试管苗的根、茎、叶柄的韧皮部筛管，以及已具维管束分化的愈伤组织的筛管部位发出很强的MLO特异荧光。

After the tissues from the root , shoot , petiole and callus of witches ' broom plants in vitro were dyed with DAPI , fluorescence microscopy showed that strong MLO specific fluorescence emitted from the sieve tubes of these tissues .

新型复合缝腔割缝筛管的强度计算及失效分析

Analysis of strength and invalidation of slotted screen with compound cavity

优质筛管模拟试验装置的研制与应用

Research & Use of Simulation Test Equipment for the Mash Screen

不锈钢钢丝绕制筛管管法兰用缠绕式垫片

Stainless steel wire wrapped scree Spiral wound gaskets for pipe flanges

复合缝腔割缝防砂筛管的设计与应用

Design and application of sand control slotted liner with compound cavity

激光切割筛管中的温度场与热影响区研究

Temperature Field and Heat-Affected Zone of Oil-Pipe in Laser Cutting

双稳态膨胀筛管有限元模拟研究

Study of finite element simulation of bistable expandable screen pipe

膨胀筛管力学分析影视化接受：文学不能承受之轻

Mechanical analysis of expandable screen pipe On literature on Screen

石油防砂割缝筛管的冲蚀磨损性能研究

Erosion Wear Behavior of Slotted Screen Liner for Sand Control

割缝筛管抗挤压强度综合因素有限元分析

Finite element analysis on the comprehensive factors of slotted liner collapsing strength

直接根据录音磁带打字带中心管的全焊接筛管

Typing done directly from an audiotape . full weld-on pipe base screen

均匀载荷作用下割缝筛管的应力分析研究

Research on stress of slotted pipe under uniform distribution loading

菲利普斯西江油田膨胀筛管防砂完井技术

Sand Control Completion Techniques by Using Expanding Screen in Philips Xijiang Oilfield

纤维复合无筛管防细粉砂理论研究

Theory of screenless fiber resin-coated sand complex fine-silty sand control

割缝防砂筛管抗挤强度有限元计算模型

The Collapsing Strength Finite Element Computation Model of Slotted Liner

岩心粒度分析分选评价及割缝筛管缝宽设计

Analytical evaluation of rock grain size and design for slotted screen liner