横断面

To investigate the effect of body position and axial load of the lumbar spine on disc height, lumbar lordosis, and dural sac cross-sectional area.

目的：研究体位和轴向负荷对腰椎间盘厚度、腰椎前凸曲线和硬脊膜囊横断面积的作用。

The spiral CT can display the time phase strengthening of the artery and vein of uterus neck and its body,improve the blood vessel and treatment efˉfects so that it is easy to observe the blood supplying of the tumor and display its actual range;obtain the continuous thin layer picture;can display the changing form of the uterus neck through the cross section,arrow and coronary form,and distinguish the structure around the uterus and the symptom of the vagina infected,pelvis lymph gland and pelvis surface metastasis to confirm the stage of cervical carcinoma and find out whether the cervical carcinoma is reˉcurred after operation and the effect is good or not after the chemotherapy.

螺旋CT能显示宫颈和宫体的动脉期及静脉期强化时相，改善血管强化效果，利于癌肿血供情况的观察和显示癌肿的实际范围；获得连续的薄层图像；能从横断面、矢状面及冠状面显示宫颈形态改变，辨别宫旁结构，阴道受侵及盆腔淋巴结、盆壁转移征象，对宫颈癌的分期准确，了解术后有无复发及放疗效果。

Results:① The distance between handle of malleus and stapes head was(2.38±0.19)cm(2.00～2.70cm), the point selecting for measuring was outer margin of handle of malleus and stpes head.②The cross section form of one_third of the handle of malleus at the end, was triangle, the anteroposterior diameter of handle of malleus was(0.79±0.12)mm, the exterior and interior diameter was(0.58±0.10)mm at the crook point,the angle of line of manubrium mallei laid(83.24±8.33)°(66～98°)posteroinferior to arch of zygoma.③The long axis of prosthesis formed(27.60±1.75)°(24.6～30.2°)angle with the perpendicular of stapes.④The dependablity between the malleus_stapes distance and transverse diameter of tympanum, the location of umbo in tympanic membrane, the diameter of manubrium mallei, angle of line of manubrium mallei and arch of zygoma were not statistically significant.

结果：①锤_镫距离最短为(2.38±0.19)cm(2.00～2.70cm)，测量点为锤骨柄末端1/3处外缘和镫骨头；②锤骨柄末段1/3横断面形状接近三角形，弯曲处前、后方向直径为(0.79±0.12)mm，内、外方向直径为(0.58±0.10)mm；锤骨柄与颞线的成角为(83.24±8.33)°(66～98°)；③赝复物长轴与镫骨垂直方向成角平均为(27.60±1.75)°(24.6～30.2°)；④锤_镫距离与鼓室横径、鼓脐在鼓膜上的位置、锤骨柄直径、锤骨柄的方位的可能相关因素之间相关性检验无统计学意义。

Fruit ribs unwinged; mericarp rounded in cross section or near pentagonal.

果棱无翅；分果爿绕行在横断面上或者近五角。

Fruit oblong, oblong-ovoid or ovoid, slightly flattened laterally, glabrous; mericarp subrounded in cross section; ribs filiform, prominent to obscure; vittae inconspicuous.

果长圆形，长圆状卵球形的或卵球形的，侧面稍扁平，无毛；分果爿近圆形在横断面上；棱丝状，突出到不明显；油管不显眼。

Methods: The double-phase 16-slice spiral CT enhanced scanning was conducted in 58 cases of the cardia cancer, then multiple plane reconstruction was done on the CT images, and the cross-sectional images and the MPR images for the infiltration depth and invasion extent of the tumors and the situation of metabasis of lymph-gland surrounding it were observed.

对58例贲门癌患者行术前双期增强16层螺旋CT扫描，再将CT图像进行多平面重建（MPR，依横断面图像和MPR图像观察肿瘤浸润深度、外浸范围、周围淋巴结转移情况，与手术中情况及术

METHODS: A total of 1 536 people in rural areas of shaanxi were studied by cluster random sampling methods. All particants were checked by slit lamp, and the people who were more than 50 years old carried out the standard examination by internal criteria. Then they were examined by LOCS Ⅲ in mydriatic situation when there were no contraindication.

遵循按比例、随机、整群抽样的原则对陕西省洋县 1 536人进行白内障患病率的横断面调查，所有受检人员均采用裂隙灯检查晶状体，年龄≥50岁的人，先在小瞳孔下按照国内诊断标准进行检查，如无禁忌再充分散瞳后，按LOCSⅢ标准进行检查。

Acute myelitis is also called acute traverse myelitis because of the pathological changes.

急性脊髓炎系因病变侵犯脊髓横断面几个节段，故常称为急性横贯性脊髓炎。

METHODS: We performed a cross-sectional observational study.

我们进行了一个横断面观察性研究。

There are temperature grads and crystalline particle concentration grads existed in oxyacetylene flame. It leads to the unequal thickness of diamond film and increases the tool cost. This paper brought forward the varying parameters method for depositing diamond thick film.

氧气-乙炔火焰的燃烧特性决定了火焰的横断面存在温度梯度和成晶粒子浓度梯度，导致金刚石厚膜的厚度不均匀，增加了厚膜刀具的制造成本。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。