查询词典 angle iron

In the end the paper takes a empirical study on our country's iron and steel industry and reaches a conclusion as follows: the optimal concentration point of our country's iron and steel industry is to keep 35 to 70 iron and steel companies in the whole industry and the optimal scale of iron and steel company is to keep 1.73 to 2.60 million tons.

本文最后还结合我国钢铁产业实际，测定2000年我国钢铁产业的最优集中区间为产业中保持有35-70家钢铁企业，钢铁企业的最优规模区间为173-260万吨。

Results showed that amino acid cheleted iron was molecular coordination compounds in liquids and had low molar conductivity, Among them, methionine chelated iron and glycine chelated iron was stable in pH 2.0~6.0 solution, the histidine cheleted iron was stable in pH 2.0~8.0 solution .

为探索更有效的脱酸方法，实验研究了在固相体系中气流A脱酸的可行性，结果发现，气流A既能起到很好的脱酸效果，又能缓慢地引发螯合反应，维持反应体系温度的稳定，其脱酸率达到94.60%。

Beijing University to my company for technical support, mainly with the production of various municipal facilities gray iron, ductile iron covers, gray iron, ductile iron water pipe fittings.

我公司以北京高校为技术依托，主要生产与市政设施配套的各种灰铁、球墨铸铁井盖，灰铁、球墨铸铁给水管道配件。

Our factory is a specialized enterprise which major in production stainless steel, stainless steel wire,Stainless steel round steel, Stainless steel flat steel, Stainless steel cold-drawing light bar, Stainless steel angle iron, Stainless steel square iron , Stainless steel hexagon bar;,Stainless steel cold-drawing section, Stainless steel wire, Stainless steel chain link, Stainless steel mesh belt, Stainless steel chain wheel, Stainless steel pressing part, rustless iron and special steel products .

本厂是专业生产不锈钢，不锈钢丝；不锈钢圆钢；不锈钢扁钢；不锈钢冷拉光元；不锈钢角钢；不锈钢方钢；不锈钢六角棒；不锈钢冷拉型钢；不锈钢丝绳；不锈钢链条；不锈钢网带；不锈钢链轮；不锈钢冲压件，不锈铁与特殊钢材的专业性企业。

Cast iron flat feet can be tested with the right-angle-foot right-angle ruler can not be tested using only two parts of the verticality of the gauge, cast iron flat foot also applies to equipment installation and inspection.

铸铁平尺可以配合直角尺检验只用直角尺无法检验的两机件的垂直度的量具，铸铁平尺还适用于设备安装和检查。

This paper presents the Machining Tool geometry of the former flank, the main flank, flank, the main cutting edge, Under the cutting edge tip cutting plane, the main section, the former Kok, horn, wedge angle edge angle, pointed knife, the blade angle, vice horn, Under the Frontier concept, the concept of cutting consumption, and the general circumstances of their choice method for processing slender shaft. cast iron materials, aluminum, stainless steel, rubber materials, plexiglass material, cloth bakelite materials, high temperature alloys, aluminum-magnesium alloy, hardened steel, the typical trapezoidal thread, the thread Triangle, Speaking at the trapezoidal screw thread pitch of the Tool geometry of the selection methods and cutting the amount of cutting fluids reasonable choice.

本文介绍了在机械加工中车刀几何角度中的前刀面、主后刀面、后刀面、主切削刃、副切削刃刀尖切削平面、主截面、前角、后角、楔角主偏角、刀尖角、刃倾角、副后角、副前角的概念、切削用量的概念、以及一般情况下的它们的选择方法，进行加工细长轴、铸铁材料、铝合金、不锈钢、橡胶材料、有机玻璃材料、夹布胶木材料、高温合金、铝镁合金、淬火钢、典型梯形螺纹、三角螺纹、特在螺距的梯形螺纹等的车刀几何角度的选取方法切削用量及切削液的合理选择。

Optimal screw path length: The distance from the optimal entrancepoint to the optimal vent point Screw tail distance: The distance between left and right optimalentrance point Transverse section angle: Half of the included angle between left andright optimal screw Sagital section angle: The average of angle between both side optimalscrew with the upper terminal plate 1.2.2 Modify the threshold of CT value to distinguish the rear partof the lumbar, Observate the the optimal entrance point and the adjustable range.

1.2.2三维重建观察螺钉最佳进钉点的位置和各方向螺钉进钉点关系，调整CT值下限阈值使椎弓后部结构尽量显示清晰，以利观察。 1.3统计方法本实验采用SPSS13.0统计软件。对同一椎体左右两侧椎弓根螺钉相对数据行计量资料配对样本t检验，对男女组间相关数据行计量资料独立样本t检验，对男女组内不同腰椎节段间相关数据行单向方差分析及不同腰椎节段间LSD法多重比较。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

In this paper, a spark advance angle adjusting system is presented. In the system, spark advance angle of engine with carburetor on which spark controlled ECU is installed can be matched, the spark advance angle was real time adjusted according to engine different speed and load to find the ideal spark advance angle.

提出了一种具有调节点火提前角功能的控制系统，该系统能够在对化油器发动机进行简单改造加装点火控制ECU后对其点火提前角进行标定，对发动机在不同转速和工况下的点火提前角进行实时的调节，寻找到发动机在该转速和工况下的理想点火提前角。

Results There were obvious mandible changes such as the increase of SNB angle and decrease of ANB angle and overjet after treatment with Twinblock, suggestive of mandible growth, increase of facial angle, reduction of mandible process angle, mild adduction of upper incisors, and mild anteversion of lower incisors.

结果 矫治前后下颌骨的变化具有统计学意义，表现在SNB角的增大和ANB角、OJ的减小，提示下颌骨的生长、面角增加和颌突角减小，上前牙轻度内收和下前牙少量前倾。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。