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- DESIGN: Cross section survey. 设计:横断面调查。
- Using standard questionnaires, 194 singleton live born mother neonate pairs (including preterm cases and term controls) were investigated by the trained field workers with cross sectional survey at the hospitals in Anqing, Anhui Province, China. 采用横断面调查方法 ,使用统一的调查表 ,由安庆市各县医院对入院分娩孕妇及其单胎、活产、早产和对照新生儿进行调查 ,共得到有效样本 194个母亲 -新生儿对。
- Methods a cross sectional survey of 284 smoking households with a infant in the city of Lu an,in Anhui provinc was carried out,and urinary cotinine to creatinine ratios in infants were measured. 方法采用问卷,调查婴儿父母家庭控烟知识、行为;采用高压液相色谱法检测婴儿尿液中可替宁含量。
- Quality Hidden Danger of Plane Cross Section Survey in Power Transmission Line 应重视送电线路平断面图测量中的质量隐患
- Laying off Method of Turning Point in Vertical and Cross Section Survey 纵横断面测量中转点的测设方法
- Laying out the boundary points with the data of cross section survey 利用横断面测量结果计算道路边桩定位数据
- A pillar, rectangular in cross section, supporting an arch or roof. 支柱交叉处的长方形柱子，支撑一个拱顶或屋顶
- The Application of PDA on Line Engineering Cross Section Surveying 掌上电脑在线状工程横断面测量中的应用研究
- A concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- A specific layer of soil or subsoil in a vertical cross section of land. 地层，岩层处于土地的垂直横截面中的某一具体土层或次土层
- Cross section surveying and mapping with total station in non-prism mode 全站仪免棱镜测绘线路横断面
- The Mett cross section applies to a point scatterer. 莫脱截面适用于点散射体。
- If we look at a cross section of a water wave, we may see that the wave form repeats itself at regular intervals. 如果我们观察水波的横截面，我们会看到波形是按一定的间隔重复的。
- This old man is a cross section of modern artists in Britain. 这位老者是英国现代艺术家的典范。
- Runners cross section type and size as per standard. 流道切面形状和尺寸符合标准。
- They do not represent a complete cross section of his works. 这当然并非包括了他的全部著作。
- A thrombosis of a coronary artery is shown here in cross section. 此横截面显示冠状动脉血栓形成。
- After incision, on the cross section also can have redfiliform. 切开之后，断面上还会有红色的丝状物。
- It is suitable for conductor cross section is 35-120 mm2. 它是合适的导线截面35-120平方毫米。
- Seed flattened dorsally in cross section, face concave. 种子背面扁平在横断面上，表面凹。
