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VDF and TFE seemed to copolymerize in a random way. The growing polymer chain radical -CF2. or-CH2 . is strongly favored over the CH2 end of CH2 = CF2, and the growth of the chain radical-CH2. trended towards CF2=CF2 in the copolymerization of VDF and TFE.

偏氟乙烯和四氟乙烯以无规共聚进行反应，在共聚反应中的链自由基CF2·或CH2·容易增长于CH2=CF2的CH2端，而链自由基CH2·在偏氟乙烯和四氟乙烯共聚反应中的增长倾向于四氟乙烯。

CPDA dissociates into a cumyl radical and a phenyl dithioester radical.

cpda游离成基自由基和苯硫酯自由基。

The more the number of hydroxyl substitution in phenyl ring, the better the ability of scavenging DPPH free radical. That is, trihydroxy is better than dihydroxy, and dihydroxy is better than monohydroxy. Moreover, when the polyhydroxy exists in phenyl ring and it is ortho-position or para-position, the ability of scavenging DPPH free radical is better too.

当苯甲醯基的苯环上羟基取代数量越多，其清除DPPH自由基的能力越好，三羟基效果优於双羟基、单羟基，双羟基效果优於单羟基；而苯甲醯基苯环上若为多羟基且羟基的位置为邻位或对位的关系时，其在清除DPPH自由基的能力较佳。

In the DQ/EG homogeneous solution, the enhanced emissive CIDEP signal of the neutral durosemiquinone radical DQH(superscript ﹒) was observed. When the DQ/EG solution with pH=9 or DQ/EG/TX-100/H2O micelle system was photolyzed, the CIDEP signal of the duroquinone anion radical DQ(superscript ﹒- was obtained. When the DQ/EG solution with pH=2.5 was irradiated, the CIDEP signal of DQH(superscript ﹒) appeared.

在光解均相DQ/EG溶液时，观察到了以增强发射的中性杜半醌自由基DQH(上标﹒的CIDEP信号；在碱性环境下(pH=9)和TX-100胶束环境下光解DQ/EG体系时得到杜醌负离子自由基DQ(上标-﹒的CIDEP信号；在酸性环境下(pH=2.5)光解DQ/EG体系时，出现的又是中性杜半醌自由基DQH(上标﹒的CIDEP信号。

We found that under acid condition, selenite radical combined with active hydroxide radical and amino-group of chitooligosaccharides to form chitooligosaccharides - Se compound molecule, the remaining group complex interacted with the negative sodium tripolyphosphate via electrostatical interactation to form nanoparticles with the size about 100nm.

通过透射电镜、粒径分析仪等方法表征，发现壳寡糖-硒纳米颗粒平均粒径为100nm左右，在酸性条件下，亚硒酸根与壳寡糖单元上活性羟基和氨基化合，形成壳寡糖-硒复合分子，剩余的基团与带负电的多聚磷酸钠复凝聚，在4℃下能够稳定保存，25℃以上壳寡糖溶胀而致纳米颗粒发生分解。

Stems angular, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 7–9 pairs of leaflets; leaflets petiolulate, green on both surfaces, fasciated or fasciated lanceolate, 5–7 × 1.5–1.7 cm, both surfaces glabrous, base subcordate to obliquely truncate or rounded, margin acutely incised serrate, apex rounded to acute; cauline leaves: stipules green, falcate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer and narrower higher up stem.

茎具角，无毛；胚根叶：托叶使成褐色，膜，背面无毛；叶柄无毛；叶片具7-9对小叶；具小叶柄的小叶，绿色在两面，扁化或者扁化， 5-7 * 1.5-1.7 厘米，两面无毛，基部近心形在斜截形或圆形，边缘尖锐锐裂状锯齿，先端圆形的到锐尖；茎生叶托叶绿色，镰刀形，草本，给锐裂状锯齿镶边；叶片象胚根叶的那但是高的更少和狭窄的小叶向上茎。

Radical resection should be regarded as the first choice for the patients with pancreatic cancer. For those patients who cannot urdergo radical resection, the selection of biliary-jejunostomy and gastrojejunostomy is more conducive to better quality of life and longer survival time.

胰腺癌患者应首选根治性切除；对不能行根治性切除者宜选择胆管空肠、胃空肠双吻合手术，以期提高其生活质量、延长生存期。

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 explore the diagnosis and treatment of gastric stump cancer.method:the clinic datum of 27 cases with gsc were analyzed retrospectively from june 1989 to june 2004.result: the ratio of gsc was 1.8% in homochronous gastric cancer.in 27 cases,the radical operation was performed for 14(53.5%),palliative operation for 9(34.6%)and pass-procedure for 3(11.5%).the one-year,three-year and five-year postoperative survival rate in radical operation was 85.7%, 50% and 35.7%.

目的：分析探讨残胃癌的诊断和治疗方式。方法：对我院1989年6月至2004年6月27例残胃癌患者的临床资料进行回顾性探讨。结果：残胃癌占同期胃癌1.8%，施行根治性手术14例（53.3%），姑息性手术9例（34.6%），由于广泛转移未行手术或仅行剖腹探查术3例(11.5%)。根治性手术病人1，3，5年生存率85.7%，50%，35.7%。

All cases of breast cancer with homolateral supraclavicular lymph node metastasis received preoperative chemotherapy.Then twelve cases underwent radical mastectomy and cervical lymph node resection,fifteen cases received preoperative radiotherapy and radical mastectomy("sandwich"therapy).

方法所有病例均于术前行新辅助化疗，其中12例乳腺癌锁骨上转移癌患者再行乳癌根治术和颈淋巴结清扫术，并与15例同期术前行放疗，再行乳癌根治术、化疗和放疗患者对比，观察1～3年存活率和复发时间。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。