What standard, flush head type bolt offers the largest diameter head?
是哪个标准的螺栓其冲出的头型极大于头部直径？
Kingfishers wedge themselves into water with a streamlined beak that gradually increases in diameter from tip to head, letting water flow past.
翠鸟流线型的长喙从尖端到头部的直径是逐渐增大的，潜水时会让水流向身后。
Top view of fillister head screw. Selection box represents thread diameter.
槽头螺钉的俯视图。选择框代表螺纹直径。
Top view of slotted head set screw. Selection box represents thread diameter.
一字槽头螺钉的俯视图。选择框代表螺纹直径。
Top view of fluted socket head set screw. Selection box represents thread diameter.
凹槽插口螺钉的俯视图。选择框代表螺纹直径。
Top view of bevel headed, hexagonal head set screw. Selection box represents thread diameter.
斜切六角螺钉的俯视图。选择框代表螺纹直径。
Top view of square head set screw. Selection box represents thread diameter.
方头螺钉的俯视图。选择框代表螺纹直径。
Top view of cheese head slotted screw. Selection box represents thread diameter.
扁圆头一字槽螺钉的俯视图。选择框代表螺纹直径。
However, it is very unpopular for this kind of bifurcation to be laid above the ground surface, especially in the case of large diameter and high water head.
但布置在地面上的明式月牙肋钢岔管尚不多见，特别是当钢岔管承受的水头和直径较大时。
In the fabrication of petrochemical plant (pressure vessel), the keys to quality control of bumped head are the diameter calculation of head blanking and its forming.
在石油化工设备压力容器制造中，对于整体冲压成形封头的质量控制关键是封头展开下料毛坯直径展开计算和冲压成形环节。
Building of hydraulic tunnels with high head and large diameter increase gradually, and the underground reinforced concrete branch pipe is adopted in more and more projects.
相应的高水头大直径水工压力隧洞的建设也逐渐增多。并且越来越多的工程采用地下钢筋混凝土岔管。
The Newton iteration method is used to solve the economic pressure on the unknown node, so as to calculate the economic head loss and economic pipe diameter of each section,.
采用牛顿迭代法来求解各未知节点的经济水压，进而得出各管段的经济水头损失、经济管径和水源二级泵站的经济扬程。
Three layers network topology is adopted. The input variables are water pressure, diameter of orifice, diameter of abrasive particles, flow rate of abrasive and feed rate of cutting head respectively.
模型采用三层结构，输入变量有水射流压力、水喷嘴直径、磨料粒子粒度(直径)、磨料流量和切割头进给速度。
The diameter of the brush head, length and POM (POM) tube inner diameter, outside diameter, length, color can be according to customer requirements processing production.
刷头的直径、长短及POM(聚甲醛)管的内径、外径、长短、颜色都可以按照客户的要求加工生产。
The external diameter of the middle part of each guiding expansion head is larger than that of the through pipe.
导向扩张头中部的外直径大于通管的外直径。
In the cold upsetting production, when the head of the part deforms much, a big block would generally be used and the diameter reducing processing method adopted.
在冷镦生产中，当零件的头部变形较大时，通常采用大料及缩径的加工方法。
The relationship model of static head in tundish, atomization pressure on the tip of nozzle and the mass median droplet diameter was established.
本文建立了静压头、雾化压力与雾化熔滴尺寸的模型关系。
The direct effect of number of effective cones per plant was the strongest, followed by diameter of primary head.
单株有效花球数对单株花产量的直接效应最大，其次为顶花球直径。
Different-diameter pipe size head, also called tube diameter at different, used to connect different diameter of pipe or flange diameter changes on.
异径管也叫大小头，两端管口直径不同，用于连接不同直径的管子或法兰进行变径。
Influence of process factors including hole diameter of filter, pressurised head and temperature, on the specific resistivity of aluminum was studied.
主要研究了过滤器孔径、工作压头及温度等工艺因素对铝电阻率的影响。
Meanwhile, in the case of the change of foundation thickness, the law of seepage amount, sand ring diameter, piezometric head, piping breach time etc were respectively explored.
同时，在坝基厚度改变情况下，分别探索了渗流量、砂环直径、测压管水头、管涌破坏时间等的变化规律。
In order to improve the efficiency of the quality test and control of the head shaft of oil pump, we designed a general measurement apparatus for measuring the diameter of the head shaft.
为了提高机油泵主动轴的质量检验和质量控制的效率，设计了一个轴径通用检测装置。
When pumping water, the head, shaft power and efficiency of the pump decrease with the reducing in impeller diameter.
输送水时，叶轮切割后，泵的扬程、轴功率、效率都下降。
Through the mechanical analysis of biomass materials, we designed a variable-diameter conical head with the open molding and verified our results using small wood shavings, sawdust and so on.
通过对生物质原料的力学分析，设计了开式成型的变径成型锥头。
Through the mechanical analysis of biomass materials, we designed a variable-diameter conical head with the open molding and verified our results using small wood shavings, sawdust and so on.
通过对生物质原料的力学分析，设计了开式成型的变径成型锥头。
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