筛的

Diffusion-weighted imaging can provide qualitative and quantitative information at cellular level about tumor cellularity and the integrity of cell membranes.

磁共振全身弥散加权成像能提供细胞水平的定性和定量信息，反映肿瘤细胞构成及细胞膜完整性的变化，尤其是近几年发展的磁共振全身弥散加权成像技术，在诊断全身肿瘤原发灶，筛查全身肿瘤转移灶方面具有一定的优势，本文就其在肿瘤筛查、肿瘤特征描述、肿瘤良恶性鉴别、肿瘤疗效评估等方面的作用予以综述。

In the organic glass tower of 600mm in diameter, the pressure drop, leakage and mist carrying of the high efficient flow-guided sieve tray were measured in the experiment and we found that there was no flooding phenomenon when the resident time of liquid in the downcomer was less to 2. 5 second. It shows that the structure of the tray is reasonable and it can increase the column capacity greatly.

在自建的φ600mm有机玻璃塔内对高效导向筛板的各项流体力学性能进行有关实验研究，其中发现在高气速下当液体在降液管中的停留时间低至2.5秒时，仍没有观察到液泛现象，说明高效导向筛板可在不改动降液管的情况下大规模地提高塔设备的液相通量和生产能力。

The research report about its diagnostic and screening value for large intestinal diseases suggested that CTVE has no diagnostic value for small polypi below 5 mm, but which has highly clinical application value for the screening diagnosis and treatment of enteroprotrusion lesions beyond 6 mm.

CTVE中进行仰卧位和俯卧位扫描对于保证结肠的充分扩张是极为必要的；对大肠疾患诊断及筛检价值的研究报告认为：5 mm以下小的息肉无临床诊断价值，则对于6 mm以上的肠道隆起性病变其筛查诊断、治疗有较高的临床应用价值。

Approximately 5% of subjects who had a perforation died within 14 days of the procedure. Risk of death was significantly increased by perforation after colonoscopy (OR, 9.0; 95% CI, 3.0 - 27.3) or after sigmoidoscopy (OR, 8.8; 95% CI, 1.6 - 48.5). The difference in risk between the two procedures has been narrowing because the risk of perforation from colonoscopy has decreased over the years, presumably from improvements in technology and in training.

约有5%发生肠穿孔的民众在筛检后14天内死亡，做完直肠镜或大肠镜后发生肠穿孔的民众死亡率明显增加（大肠镜：危险比，9.0；95%信赖区间，3.0 - 27.3；直肠镜：危险比，8.8；95%信赖区间，1.6 - 48.5），但这两种筛检方法的风险差异正在逐渐缩小中，可能是因为技术的改良与人员的加强训练，使得大肠镜的肠穿孔危险已逐年下降。

So in our test aantagonistic germ was isolated from ginger soil and was studied. 108 strains of germs were isolated by tube dilution assay from the soil of gingerin Qingmu town,Bazhong city. Q6 strain was screened from these strains of germsthough the first screened and rescreened double with deck agar method andimproved aperture-strikeing method.

本实验从巴中市青木镇堆放腐烂姜并且又长出健康姜苗的根际土中分离出106株细菌，在涂布有姜瘟病原菌青枯劳尔氏菌的肉汤培养基上进行初筛，得到6株对青枯劳尔氏菌有较强拮抗作用的细菌，通过摇瓶发酵后利用发酵液，采用改良的琼脂孔扩散实验复筛，获得一株具有强拮抗作用的菌株，命名为Q6号。

In this paper, adopted augmenting culture in nitrite bacteria culture media and the method of silica gel plate isolation,31 strains of bacteria were isolated from vegetable garden soil of our school. The color reaction test was carried out with Griess reagent and culture fluid, which was regarded as the index to determine producing NO2- or not. 13 strains which color were deep were obtained and they were further rescreened by doing nitrite test. A strain N4(coded N4,the same to the following)with higher rate of nitrosification was picked up after rescreened; A strain B08( coded B08 ,the same to the following) with higher rate of denitrification was obtained after isolated and rejuvenated from our lab conserving mixed denitrifying bacteria culture.

本研究采用亚硝化细菌富集培养基选择培养和硅胶平板分离法，从本校农场菜园土中分离到31株细菌，以格利斯试剂对培养液的反应颜色深浅作为指标衡量其产NO_2~-的多少，经初筛从分离株中筛选出13株格利斯试剂反应颜色较深的菌株，再对这13株菌作亚硝化试验，最终选出一株亚硝化速率较高的菌株(编号为N_4，下同)；另外，通过对本实验室保存的反硝化细菌混合菌液进行分离复壮，筛选出一株反硝化速率高的菌株编号为B_

After first crushed by impact force of hammer rings, the materiel is then pressed, sheared and ground between crushing plate and ringhammers to the required granular product which flows off the screen, and those uncrushed such s tramp iron, wood pieces, stone etc will be brought into the tramp iron trap.

工作原理环锤式破碎机利用旋转的转子带动环锤对物料进行冲击破碎，被冲击后的物料又在环锤和破碎板、筛板之间受到压缩、剪切、碾磨作用，使物料达到所需的粒度，被破碎后的物料经筛板的栅孔落下，不能被破碎的铁块、木块、石块等经拨料板拨进除铁室。

Screen analysis method is adopted in 《CB/T 2481.1-1998》(or CB/T 2481.1-2009),《CB/T 9258.2-2000》 and 《CB/T 6406-1996》, according to which the "grain size" means the longest distance between two opposite tan gents of the grain projection on the screen.

GB/T2481.l-1998》（或GB/T2481.l-2009）、《GB/T9258.2-2000》、《GB/T6406-1996》采用筛分法测粒度，测得的&粒度&实际上是颗粒在筛面上的投影相距最远的两对边切线间的距离。

This paper puts forward the method of using the vibrating isolation ring to reduce noise ,and advances the definite principle of the rigidity of the vibrating isolation ring and calculation formula.

提出了用隔振环来降低振动筛噪声的方法，以及隔振环刚度的确定原则和计算公式。分析了安装隔振环后，对振动筛固有频率影响不大，可保证工作频率是最高固有频率的两倍以上，可保证振幅不低于原振幅的98%，基本上不降低工作效率。

After an initial positive screening by dipsticks and/or bedside microscopy, only 44.4% had appropriately definitive tests by culture of a proper urine specimen (bladder tap/catheter/clean catch urine) whereas half of the cases had repeated bag urine screening.

在经浸渍片和/或床边显微镜初始阳性筛查之后，仅 44.4%使用合适的尿液标本培养（膀胱穿刺/导尿管/中段尿）有适当的确诊检验，尽管一半的病例有重复的袋装尿筛查。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。