直径的

All angle connections at base of column sections and/or anchor plates at column base shall have hole diameters a maximum of 1/4 inch (6 mm) larger than the anchor bolts diameter.

柱子截面底部的连接角，或柱子底部的地基板应该设有孔，孔的最大直径比地脚螺栓的直径大1/4 英寸(6 毫米)。

Base pads must be in line and flat within 1/64 so base will not rock.

所有显示的中心线(5处)必须在相应的直径中心的直径0.002的圆内。

It is indicated that using the grade 2 coal mining permissible water-gel explosive at condign work face are provided with better blasting results and higher safety, and the arrangement of combining big cutting-borehole with small rest borehole can attain better blasting efficiency and smooth basting result.

试验表明：在条件允许的工作面使用煤矿许用二级水胶炸药具有较优的爆破效果和较高的安全性：采用大直径掏槽炮眼和小直径其它炮眼相结合的炮眼布置形式，可达到较好爆破效率和光爆效果。

Stent should be soft, with good lateral bending property, and diameter of the stent should be 1.0-2.0 mm longer than the actual stenosis. Implantation technique should be improved. These can reduce extrusion and cutting action of the atheromatous plaque due to balloon dilatation and stent expansion, and prevent plaque defluxion during implantation. Filter protection device is used to filter tissue debris and to prevent microemboli entering cerebral circulation, which can elevate safety of carotid stent implantation.

选择相对柔软的，侧弯性能较好，且直径应比狭窄处实测直径大1.0~ 2.0 mm的支架，提高置入操作技术，可以减轻支架置入过程中球囊扩张及支架膨胀时对粥样斑块的挤压与切割作用，防止斑块脱落，同时使用滤器脑保护装置以过滤较大组织碎片，阻止较大微栓子进入脑循环，提高颈动脉支架置入的安全性。

The internal relation between a large number of existing aerodynamic sketches and performance parameters of centrifugal fan is analyzed and investigated by means of statistical method,the correspondence relation between speed coefficient and diametral quotient,impeller outlet breadth and diametral quotient is found.

应用统计的方法对大量已有离心通风机的空气动力学略图和性能参数之间的内在关系进行分析研究，发现了速度系数σ与直径系数δ之间以及叶片出口宽度b2与直径系数δ之间存在着对应关系，利用这些关系提出了确定风机叶轮主要参数的新方法。

The class one which was expressed by diameters of pore maximum inscribed circle was adapted and a new distribution model expressed by diameters of pore area equivalent circle modified with fiber thickness was presented.

以几何概率和平面随机分割理论为依据，分析了非织造布中孔隙结构的分布模型，将经典的以内按圆直径表示的有效孔径分布模型改为以面积等效圆直径表示的有效孔径分布模型，并结合纤维细度进行修正，实验证明，该模型更符合实际情况。

Through the preliminary study on the management of the population of Athyrium multidentatum, we found that the community of artificial Larix gmelinii forest has a high value of usage. Planting the population of Athyrium multidentatum may make us to improve the level of intensive management, and through the test this method is available. The population of the spacing in the row of forty cm in the community of Betulla platyphylla forest and the population of the spacing in the row of eighty cm in the community of artificial Larix gmelinii forest have the largest hight, leafstalk diameter and less herb coverage. The foodstuff technology of ferns is backward and the products are less, so we must improve the study on the usage of forest ferns.

通过对猴腿蹄盖蕨种群经营措施的初步研究，我们得出落叶松人工林群落是一个极具开发价值的群落；人工移栽猴蹄盖蕨种群，可提高集约化管理程度，经过试验，方法可行；白桦林群落株距40cm的猴腿蹄盖蕨种群高度、叶柄直径均最大，且杂草盖度较小；落叶松人工林群落株距80cm的猴腿蹄盖蕨种群高度、叶柄直径均最大；蕨菜食品加工技术落后、工艺简单、产品单一，今后应加强研究。

Szechuanensis had mesophyte characteristics which were different across elevations; these differences contributed to their adaptation to a range of drought environment; the leaf thickness, vein thickness, vessel number, palisade mesophyll thickness and the P/S ratio were increased, while vessel diameter was reduced with increasing elevation, but no significant differences in epidermal thickness and spongy mesophyll thickness were found along the elevations.

随着海拔的升高，叶总厚度、栅栏组织厚度、P/S值和主脉厚度以及导管分子数目等均呈增大趋势，而导管分子直径减小；表皮厚度、海绵组织厚度等无明显差异。2多元统计分析显示，叶肉组织厚度和叶片总厚度主要受温和度的影响，并随着温和度的降低而增大；P/S值和导管分子数目主要与年降水量和土壤含水量的变化有关，随着水分增加，P/S值和导管分子数目增大，而导管分子直径减小。

It was pointed out that the diameter of the powder core of safety fuse was themain factor for its combustibility by a discussion of the combustion mechanism of the black powder, and the on-line testing significance of the diameter of the powder core was also described inthis paper.

文章通过对黑火药燃烧机理的探讨，指出黑火药药芯直径是影响导火索燃烧性能的主要因素，阐明了药芯直径在线检测的意义，并扼要介绍了一种光电式检测器的工作原理及其应用。

In the subsequent experiments, when the LaBe cathode emitted continuously and the current is 40uA, the minimum diameter of electron-beam spot recorded was 22 um. While the LaB6 emitted pulse, the minimum diameter of the focus decreased and wasnt more than 15um. The reason is that the heat accumulated on the foil-film, which enlarged the focus dimension, reduced remarkably.

当阴极采取连续发射电子的工作模式(发射电流40μA)时，记录测量到的最小电子束焦斑直径不大于22μm；而在相同条件下，以脉冲方式发射电子束时，其焦斑直径不大于15μm，原因是短时间的电子轰击减小了靶面的热堆积效应等。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。