阴性的

Methods All 25 youths with AOVM(15 with moderate headache、vomit、conscious deficit, 7 with epilepsy and hemicrania, 3 with motive and conscious deficit of extremities, and the results of cerebral digital subtractive angiography of all were negative)were examined by CT and MRI.

方法对首发症状为头痛、呕吐、意识障碍15例，抽搐发作伴偏头痛7例，肢体运动及感觉障碍3例，且脑动脉数字减影血管造影为阴性的25例青少年做了CT、MRI检查。

Chest imaging was consistent with miliary tuberculosis; however initial expectorated sputum was culture negative.

胸片表现为粟粒性结核；但晨痰培养是阴性的。

The mean times to IgM and IgA negativity were 156 and 220 days, respectively.

IgM和IgG阴性的平均时间分别是156和220天。

Methods 183 patients with seronegative viral hepatitis in serum were selected.

目的了解肝炎病毒血清学标志阴性的肝病存在情况，探讨其病因。

The results showed that a large amount of Actinobacillus pleuropneumoniae with gram negative infections could be seen in the secretion of bronchus; There were congestion in liver, necrosis, hemorrhage, fibrosis with neutrophils and macrophage infiltrating in lung tissue, necrotic splenitis in spleen, and hemorrhagic lymphadenitis in lymph node.

结果表明；在支气管分泌物涂片中含有大量呈革兰氏阴性的胸膜肺炎放线杆菌；肝脏淤血，肺组织坏死、出血、显著纤维化及嗜中性粒细胞和巨噬细胞浸润；脾脏呈坏死性脾炎变化，淋巴结呈出血性淋巴结炎变化。

Any of various gram-negative, rod-shaped, often pathogenic bacteria of the genus Streptobacillus, occurring in chains, especially S.

链杆菌一种革兰氏阴性的杆状，经常为单性生殖细菌链杆菌属，呈链形，尤指引起一种''。

PCR products of isolates that rpoB gene mutations were not found with PCR-SSCP were sequenced using double deoxidization chain terminating.

并对其中19株SSCP阴性的耐RFP株用双脱氧末端终止法进行测序分析。

PCR products of isolates that rpoB gene mutations were not found with PCR-SSCP were sequenced usˉing double deoxidization chain terminating.

并对其中19株SSCP阴性的耐RFP株用双脱氧末端终止法进行测序分析。

It turned out that 7 cases were found with trisomy 21.4 cases among the 9916 negative-screening cases were born with trisomy 21, according to the analysis of the chromosome karyotypes in peripheral blood.

在筛查阴性的9916例中，出生DS患儿4例，经外周血染色体核型分析证实为21三体。

Among the 110 patients with a positive potassium stimulation test, 7 (6.4%) had normal cystoscopic findings, while 103 (93.6%) had moderate or severe post-dilatational hemorrhage.

然而在43位钾离子刺激试验阴性的病患中，4位（9.3%）膀胱镜检为正常，39位（90.7%）有扩张后黏膜下出血现象。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。