查询词典 helical

The reactions of 〓with bptz generate a cyclic tetranuclear and a 1-D helical chain 〓 complexes with thehydrolysis reaction products: 2,5-di(4-pyridyl)-l,3,4-oxadiazole and N,N'-bis(α-hydroxyl-2-pyridyl)ketazine.

本文利用〓在不同的环境中与bptz反应得到两个水解产物形成的配合物并解析了其晶体结构，一个为一维链状配合物，另一个为一个四核环状结构。

Craniocaudal view and mediolateral oblique were conducted for each patient.If necessary,mediolateral view or spot view was operated. All cases take plain scanner and contrast-enchanced scanner with use of a helical CT (Somatom AR.SP).For a patient,a field view was chosen that field depict the whole breast,as well as the ipsilateral axillary and internal mammary chains.

SP螺旋CT机进行平扫和增强扫描，扫描范围从腋窝顶部至乳房下界。23例全部采用增强扫描，分别在注射造影剂100ml后30s、60s、90s时进行动脉相、静脉相、延迟相CT扫描，病人采用俯卧位，上胸及腹部垫高，使乳房自然下垂，双臂交叉放在头上。

Especially, the typically stromatolitic pyrite, micro-strawberric pyrite, microgranular pyrite and rarely helical and silky pyrite have roughly been explained with the biogenic agency.

特别对较典型的叠层石黄铁矿、显微莓球黄铁矿、黄铁矿的微小球粒及较罕见的螺旋状和丝状黄铁矿用生物成因进行了初步解释。

Under Multislice helical CT guidance, 2.5-5 mL of polymethylmethacrylate mixture （ratio of polymer, moner, ultrafluid iodinated oil was 20 g : 10 mL : 3 mL） had been injected into pathologic pedicles step by step after successful puncture using 13G needle.

在CT引导下，用13G针穿刺到椎弓根，将聚甲基丙烯酸甲酯粉剂、液态单体及超液态碘化油按20g：10mL：3mL的比例配制，当骨水泥呈膏状时，分步注入骨水泥约2.5～5mL。

Imaging of noncalcified coronary plaques using helical CT with retrospective ECG gating［J］.

多层螺旋CT冠状动脉造影的扫描技术及临床应用［J］。

With regard to helical gear and herringbone wheel , teeth are represented with three thin, parallel lines in the noncircular view.

对于斜齿轮和人字齿轮，可在非圆投影的视图上用三条平行的细实线表示齿线方向

Helical gears can also be used to connect nonparallel, non-intersecting shafts at any angle to one another.

螺旋齿轮也可以被用来连接非平行，不相交的竖井任何角度对另外一个人。

Recent studies have shown single-section helical CT to be useful in differentiating perforated from nonperforated appendicitis, the authors explain, but the accuracy was not high for any single finding.

作者指出：近期的研究显示，单节螺旋CT可以对阑尾穿孔的诊断有一定作用，但其准确性一直不尽如人意。

The dispersion and interaction impedance of two kinds of helical slowwave structure with vane-loaded are measured by using nonresonant perturbation method in 4～18 GHz with Aglient 8510C vector network analyzer.

螺旋线行波管由于其具有高功率、高增益、高效率和宽频带的特点，在电子对抗和通讯等领域具有广泛的应用。

Objective To study the value of 64-row detectors helical CT multiple planar construction in examination of paranasal sinuses.

目的：探讨64 层容积CT扫描多平面重建在副鼻窦检查中的价值。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失