穿孔性的

The diverse types of tracheary elements and perforation plates in secondary xylem of A. asiatica show that previous knowledge about the tracheary elements and perforation plates in secondary xylem of A. asiatica is not complete and thus any inferences about the aboriginality and evolution of a taxon made depending on these traits are not reliable.

根据类叶升麻次生木质部中多变的管状分子类型，认为以往积累的有关毛茛科植物管状分子类型及导管穿孔板类型是不全面的，因此以该性状为参考作出的有关某一个类群的原始性和进化性的推论也是不可靠的。

The anatomical study deepens the knowledge of G-type conducting cells: 1 It proves the theory of two depositional process for secondary wall (Bierhorst, 1960): the discontinuous cellulose layer is laid down before the continuous lignified layer; the former layer is prone to be broken down, while the latter is highly decay-resistant; 2 It suggests that the cellulose primary and secondary walls of tracheids are not perforated. Instead of longitudinal pits (Li, 1992), the lignified tracheid secondary wall of Hsüa possesses irregular simple perforations; 3 In Hsüa reflexa and Huia gracilis, the perforation casts may represent the thickness of lignified secondary wall; 4 The wall structure of G-type tracheid is diversified. At the genus level, the secondary wall structure differs in the distribution, internal shape and structure of the perforations; 5 Perforations of some G-type tracheids combine the characters of S-type tracheids in their distribution, density and diameter.

解剖学的研究加深了对G-型输水管胞的认识 1）验证了管胞次生壁分两个阶段形成的理论（Bierhorst，1960），即先后形成不连续的纤维质层和连续的木质化层，前者易被分解，后者抗侵蚀性强；2）证明管胞纤维质的初生壁和次生壁不具穿孔，Hsüa管胞的木质化次生壁具有不规则的简单穿孔，而不是纵列的纹孔（Li，1992）；3）Hsüa reflexa和Huia gracilis的穿孔铸体可代表木质化次生壁的厚度；4）G-型管胞壁层结构具多样性，植物属一级的分异主要表现在次生壁穿孔的分布、孔腔形状和结构的不同；5）某些G-型管胞的穿孔在其分布、密度和孔径方面可兼有S-型管胞的特征。

Thirty-two pathological corneal samples were collected from the patients during corneal transplantation, including keratoconus (3 cases), endothelial keratitis (1 case), corneal endothelial decompensation after cataract operation (4 cases), Mooren's ulcer (3 cases), corneal implant opacities (5 cases), herpes simplex viral leucoma (1 case) and perforation (3 cases), trachoma corneal leucoma (1 case), bacterial (1 case) and fungal (1 case) corneal perforation, chemical trauma (5 cases), and burn (2 cases).

32例角膜植片标本来自我院角膜移植取下的病变组织，其中园锥角膜3例；角膜内皮炎1例；白内障术后角膜内皮失代偿4例；蚕食性角膜溃疡3例；角膜植片混浊5例；单疱病毒性白斑1例和单疱病毒性角膜穿孔3例；砂眼角膜白斑1例；细菌性和真菌性角膜穿孔各1例；角膜化学伤5例和热烧伤2例。

Three patients with root gangrenous perforative appendicitis were treated with laparoscopic appendectomy from Jun.2002 to Dec.2007,and the clinic data were summarized.When dealing with the appendical root,46 cases were used double Endo?

总结2002年1月至2007年12月应用LA治疗93例坏疽、化脓性阑尾炎合并穿孔患者的临床资料，术中处理阑尾根部时，使用 Endo？

Repeated corneal perforation occurred in nine eyes, with primary diseases of herpes simplex keratitis (HSK; four eyes), Mooren ulcer, necrotizing keratitis and scleratitis, bacterial keratitis, and alkali burn. Corneal grafts perforated in 31 eyes, resulting from recurrent HSK, implant autoproteolysis, bacterial infections, recurrent Mooren ulcer, immunologic rejection, trauma, and fungal recurrence.

本研究中有9只眼发生了反复的角膜穿孔，其原发疾病分别为单疱病毒性角膜炎（HSK，4只眼），蚕食性角膜溃疡（2只眼），坏死性角巩膜炎（1只眼），细菌性角膜炎（1只眼）和碱烧伤（1只眼）。31只眼发生了角膜植片穿孔，分别由单疱病毒性角膜炎复发（8只眼），角膜植片自溶（7只眼），细菌感染（6只眼），蚕食性角膜溃疡复发（4只眼），免疫排斥反应（3只眼），外伤（2只眼）和真菌复发（1只眼）引起。

Objective:To explore the feasibility and safety of laparoscopic appendectomy for root gangrenous perforative appendicitis.

目的：探讨腹腔镜阑尾切除术治疗根部坏疽穿孔性阑尾炎的安全性和可行性。

objective to investigate the clinical characteristics and the surgical treatment for perforation of gastric cancer.methods we summarized 22 cases suffering from perforation of gastric cancer in our hospital,6 were treated with repair of perforatlon and gastrojejunostomy at the same time,8 with partial gastrectomy,8 wth radical gastrectomy for gastric cancer（d2,d3）,and positive treatment such.as intraperitoneal chemothrapy to the patients above.results the life expectancy of patients treated with repair of perforation,partial gastrectomy or radical gastrectomy for gastric cancer was 6,29.2 and 37.3months.conclusion reasonably select surgery methoty and positive treatment are keys to prolong the survival time.

目的 探讨胃癌穿孔的临床特点及外科治疗方法。方法对22例胃癌穿孔病人实施不同手术方式治疗。其中行穿孔修补加胃肠吻合术6例，姑息性胃癌切除术8例，胃癌根治术（d2，d3）8例，后两者术后均行腹腔化疗等综合治疗。结果穿孔修补加胃肠吻合术、姑息性胃癌切除术、胃癌根治术术后平均生存期分别为6个月、29.2个月、37.3个月。结论合理选择术式，综合治疗，是延长病人生存期的关键。

objective to discuss treatment of acute perforation of peptic ulcer,to elevate i stage operation recovery rate.methods 208 cases in 20 years were retrospectively analysed,86 cases (41.35%) were recovered by subtotal gastrectomy;18 cases (20.93%) were undergone billroth i anastomosis;68 cases (79.07%) billroth ⅱ;42 cases (61.76%) billroth ⅱ precolonic anastomosis;26 cases (38.24%) retrocolic anastomosis.results in 86 cases,1 case was complicated by gastroparesis,others all recovered.all cases were followed up for 5 years.conclusion the procedure can shorten the recovery time and increase quality of life.

目的 探讨消化性溃疡急性穿孔的治疗方法，旨在提高ⅰ期手术治愈的成功率。方法回顾性总结分析20年间手术治疗消化性溃疡急性穿孔208例，其中86例（41.35%）采用胃大部连同病灶切除ⅰ期治愈，胃肠重建采用billrothⅰ式吻合18例（20.93%），billrothⅱ式吻合68例（79.07%），billrothⅱ式结肠前吻合42例（61.76%），结肠后吻合26例（38.24%）。结果 86例中除1例billrothⅱ式吻合术后发生胃瘫并发症，经保守治疗月余治愈外，其余病例术后恢复顺利，均随访5年以上情况良好。结论消化性溃疡急性穿孔的ⅰ期手术治疗，解决了因溃疡穿孔单行修补术后再次复发穿孔、出血、幽门梗阻、粘连、溃疡恶变而重复手术等问题，缩短了治愈周期，提高了生存质量。

Methods 196 patients with perforating appendicitis were randomly divided into drainage group and non - drainage group.

方法将196例穿孔性阑尾炎患者随机分为引流组和非引流组，比较术后两组切口感染、肠粘连发生率以及术后病人的住院天数。

Acute perforating Objective To study the clinical value of peritoneal cavity non - drainage after the operation of appendicitis.

目的探讨穿孔性阑尾炎术后不放置腹腔引流对临床疗效的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。