横断面

The thought of defining characteristic section and dividing superelevation transition segment into several smaller segments according to the characteristics and types of S-type curve s superelevation transition segment is put forward.

根据S形曲线超高过渡的特点、类型确定超高过渡段中的特征断面，提出S形曲线超高过渡分段处理的思路，并给出 S型曲线超高过渡段上任意桩号处、横断面上任意点超高值的简单计算公式。

Methods :51 cases of syringomyelia associated with intraspinal tumor were studied.

全部病例均用SE序列进行矢、横断面成像。

All subjects in the sample of 600 individuals were selected by a stratified systematic random sampling method and interviewed by trained interviewers.

本研究采横断面研究方法，以苗栗县所有65岁以上老年人作为研究母群体，采分层随机抽样的方法，共得到600位样本，其中男性302人，女性298人。

Health, health care utilization and expenses about the inhabitants are studied with the transect investigation in the area.

①运 用卫生服务横断面调查技术对居民健康状况、卫生服务利用与费用进行研究。

Logic rationality and history rationality give emphasis to logical structure of static transect of science and historical structure of vertical section of science separately.

逻辑理性和历史理性分别着重于考察科学的静态的横断面的逻辑结构和科学的动态的纵断面的历史结构。

Results The segmental bronchial ramifications of the left upper lobe were classified into three types mainly: common stem of apical and posterior segmental bronchi (64%, 130/200), trifurcation (23%,45/200), common stem of apical and anterior segmental bronchi (10%, 21/200), and they could be identified in two typical slices of transverse thin-section CT.

左肺上叶3种主要分支类型可以通过薄层CT横断面图像2个典型层面辨认；左肺下叶依据基底干支气管分支的不同分为2种主要类型，Ⅰ型163例(75%)：基底干支气管两分支，即内前底段支气管、外后底段支气管；Ⅱ型39例(18%)：基底干支气管3分支，即内前底段、外侧底段、后底段支气管。

There were two dominating types in the left basilar segmental bronchi: bifurcation (75%, 163/216), trifurcation(18%, 39/216), and they could also be identified in two typical slices of transverse thin-section CT.

下叶两种主要分支类型可以通过薄层CT横断面图像2个典型层面辨认。

Needles with basal sheath persistent and basal scalelike leaves decurrent, cross section with 2 vascular bundles; umbo dorsal.

针叶具基部鞘宿存和下延的基部鳞片状叶，横断面具维管束；鳞脐背侧。

The cross sectional dimensions of the pile-plank structure/unballasted track in this paper provide reference for design.

此外，本文提出的桩板结构－元砟轨道路基横断面尺寸可供设计参考。

The peak discharge in flood season and annual average sediment concentration have also influence.Moreover,water diversion is an important factor affecting the bankfull wet area.

如果粗略地以河床实测横断面曲线中二滩滩唇所在的位置作为平滩水位，从图1中可以看到1995年与1981年相比平滩水位下河床萎缩的状况。

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。