无学

Methods 38 cases taking ASA in 2 months were selected as bleeding group and they all had different degrees of symptoms including hematemesis、melena or positive occult blood of stool;30 cases taking the same drug without the sign of gastrointestinal bleeding were recouited as control group.The indexes were compared,including the change of hemodynamics、the occur rates of ASA related dyspepsia symptoms、 peptic ulcer or bleeding history and positive rates of H.

选择服用ASA在服药2月内出现呕血、黑便或大便隐血阳性的患者38例；对照组为30例服用相同制剂无消化道出血征象患者，比较两组患者血液流变学变化、药物致消化不良症状发生率、既往消化性溃疡病史及幽门螺杆菌阳性率等指标。

Tight alloying layer with undulation and without visual pocket and inclusion has been obtained by experiment.The alloying layer is metallurgically combined with the matrix.

试验结果获得了致密、无肉眼可见气孔、夹杂、熔覆表面有一定起伏的合金层，合金层与基体间完全冶金结合；熔覆合金层由单相Fe3 Al构成，覆层组织为粗大的柱状晶团，柱状晶团内包含大量极细小的板条状Fe3 Al晶粒，一些相邻的板条晶之间具有基本相同的晶体学取向。

Dense alloy coating without pore and inclusion is obtained which metallurgically bonded with steel but existing a few cracks. The results show that the cladding alloy coating is mainly composed of single-phase Fe3Al, and the microstructure is coarse equiaxed grain-groups that consist of large amount of fined slug like Fe3Al grains, between which some adjacent grains have the similar orientation.

试验获得了致密、无肉眼可见气孔、夹杂的合金层，合金层与基体间完全冶金结合，但存在裂纹现象；熔覆合金层主要由单相Fe3Al构成，覆层组织为粗大等轴状晶团，等轴状晶团由大量极细小的条状Fe3Al晶粒构成，一些相邻的条状晶粒之间具有基本一致的晶体学取向。

Methods Human nasoseptal chondrocytes were seeded onto a nonwoven mesh of polyglycolic acid to form a cell-PGA construct. The construction was then configured in sheet and tube shapes, and implanted subcutaneously into the dorsa of 11 athymic mice. The specimens were harvested 4,6,8 weeks after implantation and subjected to gross morphologic and histologic analysis.

方法将人鼻中隔软骨细胞播种在聚乙醇酸（polyglycolic acid， PGA）无纺网支架材料上，制成片状和管状结构，埋入裸鼠体内，经4、6、8周后取材作大体及组织学观察。

There were insignificant osteophyma formation and screenage expression of joint space constriction with the knowledge and agreement of the patients.

无明显骨赘形成和关节间隙狭窄影像学表现，患者知情并同意。

Sensory impairment and urinary dysfunction also had developed, and paraparesis persisted after the hypokalemia was corrected during hospitalization. An optokinetic nystagmus test showed bilateral sick waves and at the same time a cerebrospinal fluid analysis was normal. A blood examination disclosed borderline anti-nuclear antibodies and an elevated serum IgG level. Her cervical spinal cord showed mild swelling and contrast-enhancement when examined by magnetic resonance imaging. Neither a brain stem nor an optic nerve's lesion was found. Based on the above, acute transverse myelitis was diagnosed. All the symptoms present in the patient relieved gradually after 5-days of pulsed intravenous methylprednisolone therapy.

一50岁女性，因为眩晕、前额头痛、视力模糊、恶心、呕吐及两侧下肢无力而求诊，於低血钾矫正后，两侧下肢无力依然持续，并发生胸部以下感觉缺损及排尿困难等现象，视运动性眼振检查显示两侧波形障碍，脑脊液检查正常，血液学检查显示抗核酸抗体及血清IgG指数偏高，显影剂增强磁振造影显示颈段脊髓肿大且略为显影，并无脑干或视神经的病灶，诊断为急性横断性脊髓炎，给予静脉注射类固醇后症状逐渐缓解。

MSCT can nicely show the costal cartilaginous imaing, for on the live research costal cartilaginous anatomic shape to found a new pathed, is the best research method and have no wound in diagnosis costal cartilaginous disease.

结论多层螺旋CT能很好地显示肋软骨，为在活体上研究肋软骨形态学开创了一条全新途径，是一种无创伤性研究肋软骨疾病的最佳影像学方法。

As a new diagnostic method, DTI technology should be a routine examination for cerebrovascular diseases.3 DTI sequence should be added when the patient with cerebral ischemia has been examinated by routine MRI and found LA or cerebral infarction on acute stage in doubt. DTI can find hyper-acute and acute cerebral infarction immediately in order to treat the illness in time.4 DTI technology can reflect the mini-alter of alba formation pericerebral infarction with non-invasion in vivo. It can also appraise the degree of cerebral infarction and anticipate the result.

应作为脑血管病影像学常规检查。3对于临床上有脑缺血表现的患者，其常规MRI检查仅发现有脑白质疏松或怀疑有急性期脑梗死，应该加做DTI序列以便及时发现并治疗疾病。4 DTI可在活体无创性的反映脑梗死灶周脑白质结构的微细改变及评估缺血性病变损伤的严重程度和预测脑梗死结果。

RESULTS: Peripheral neuropathy or purpura/petechiae, or both, were the most important clinical features to discriminate patients with RA with and without histologically proven RV.

结果：外周神经病或紫癜/紫斑是区分 RA 患者有无组织学证实的血管炎最重要的临床特征。

I set my child up with something to eat, turn on Play School or Hi-5 and get another hour's sleep while my child learns her ABCs, one-two-threes and - as lots of these shows are Australian - an array of poisonously cute little songs about koalas, kookaburras and kangaroos.

我把孩子放在电视机前，给她点东西吃，转到「Play School」、「Hi-5」两个节目，然后趁我的孩子在学她的ABC、123以及其他澳洲制造的毒素－一堆关於无尾熊、笑翠鸟、袋鼠的可爱而歌时，再去睡一小时的回笼觉。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐