'Thus for steel cannonballs, skipping can only occur for angles shallower than seven degrees.' 因此,对于钢制炮弹而言,只有投掷角度小于7时才有可能产生弹跳。
The steel square is used for laying out and trying up right angles. Rifles are designed to be accurate at long distances. 钢尺用于设计并精确修整直角。步枪被设计用来进行远程精确射击。
Typical structural steel shapes include beams, channels, angles and tees. 典型的结构型钢包括工字钢、钢、钢和丁字钢。
Hot rolled stainless steel with equal leg angles GB/T4227-1984不锈钢热轧等边角钢
Steel parts must have polished angles and their visible surfaces smoothed down. 所有钢制零件的边缘必须削角、打磨、抛光使其如镜面般光亮。
An Experimental Study of Reinforced Concrete Columns Repaired and Strengthened by Steel Angles 钢筋混凝土框架柱外包角钢加固方法的试验研究
The steel square is used for laying out and trying up right angles. 钢尺用于设计并精确修整直角。
Experimental research on seismic behavior of steel frame with top and seat angle with double web angles semi-rigid connections 角钢连接的半刚性钢框架抗震性能试验研究
On the Model of Prediction Temperature and Rolling Force Model in Splitting Caliber for Continuous Rolling Steel Angles 角钢连轧温度预报与切分孔轧制力模型
Hot rolled stainless steel with equal leg angles Study and Test on Application of Non-equilateral Angle Steel for Transmission Towers GB/T4227-1984不锈钢热轧等边角钢不等边角钢用于输电杆塔的试验研究
And the reinforcement plan is to make waterproofing and moisture proofing treatment to the walls, add wall columns to the large-spanned room walls, reinforce walls under the beam with double-layer steel meshes and strengthen the cracked re-bar brick lintels with additional steel angles. 加固处理方案为:墙体做防水防潮处理,大跨度房间墙体附壁柱加固,梁下有八字形裂缝墙体双面钢筋网加固,对开裂的钢筋砖过梁采用加设角钢加固。
This paper presents the experimental results of the reinforced concrete columns repaired and strengthened by steel angles at the four corners. 本文介绍了采用外包角钢加固钢筋混凝土框架柱的方法。
This paper probes into the problem of the finished steel angles 'pass conformation, including the extent of the influence of the corner angle of the pass conformation, the interior span arc of the pass conformation, the waist pass conformation, etc. 根据角钢生产特点,探讨了角钢成品孔型的构置问题,包括孔型顶角、孔型内跨圆弧、孔型腰部等因素的影响程度。
The dissertation focuses on the study of tip and bottom angle steel linking light steel frames with stomach plank angles. 本文主要针对带双腹板角钢的顶底角钢连接的半刚性连接轻型钢结构框架进行分析研究。
The prospects are made about the market demand for colour coated steel sheet from the angles of economic growth rate and consumption level, and an introduction is given on its general situation and development in recent years. 简要介绍了世界彩涂钢板生产的发展概况以及近几年的发展动态,从经济增长率角度及消费水平出发,展望了彩涂板市场的需求情况。
New steel microwave tower put forward in this thesis is a tower structure which cross section is triangle and the legs are cold-formed 60 ° single angles, the rest members all are cold-formed single angles. 本文提出的新型钢结构微波塔结构是横截面为三角形,角柱采用冷弯60°单角钢,而其余杆件均采用冷弯单角钢构件的塔架结构。
Structure steel 20 g is used as a welded joint specimen to perform the cold bending test in different angles. 选用20g焊接试板,在不同的冷弯角下进行冷弯试验;
Tension Equation Taking Into Account the Workpiece Section Varying and the Static Process Simulation of Steel Angles Continuous Rolling 变断面张力微分方程式与角钢连轧稳态过程仿真
Secondly, through the numerical simulations of deformable blunt projectile impacting deformable target, and the experimental and numerical studies on the truncated-conical projectiles penetrating thin steel plates at various oblique angles, the numerical method and modeling are further validated. 应用平头弹正撞击靶板发生大变形的数值计算,截锥形实心、空心弹体撞击薄靶的穿甲实验、相应的理论分析和数值模拟确认与验证分析模型的合理性;
Under different torsion levels, the angle of twist, distortion in the middle section, steel strains, angles of inclination in different situation of section after concrete cracking have been studied. 分析了各级扭矩荷载作用下,构件线扭转角、跨中截面畸变、钢筋(纵筋和箍筋)的应变、构件混凝土开裂后截面不同位置处裂缝沿纵向夹角的规律;
The computational results indicated that the maximum stress always appears where the rubber roller was to contact the strip steel and the magnitude of wrapping angles exert no effect on stress value. 结果表明:胶辊所受应力的最大值总是处于胶辊即将与带钢接触的位置;接触包角对胶辊最大应力值影响很小。
The results show that the semi-rigid steel frame with top-seat and web angles has a good hysteretic behavior in earthquake. The plastic of the deformation starts from the top-seat angles, the character of the semi-rigid embody on the top-seat angles. 研究结果表明,双腹板顶底角钢连接钢框架在地震作用下具有良好的滞回性能,结构的塑性变形开始于顶底角钢,节点的半刚性主要体现在顶底角钢上。