线

Main Products has 201; 202; 301; 303; 304; 430; 321; 316; 310S stainless steel, such as bright line; electrolysis line; hydrogen back line; cold Tun silk; bright rods; hexagonal rods; black bar; angle; channel ; flat steel; square steel; profile; wire; decorative tube; seamless pipe and other products (according to user requirements of production standards, models, materials products).

企业主要产品有201；202；301；303；304；430；321；316；310S等不锈钢光亮线；电解线；氢退线；冷墩丝；光亮棒；六角棒；黑棒；角钢；槽钢；扁钢；方钢；异型材；焊丝；装饰管；无缝管等产品(可按用户要求生产各种标准、型号、材质的产品)。

The low-level wind field displayed cyclonic character on the north part of the squall line, whereas on its south part the wind field pattern was anticyclonic, with clear convergence of westerly and southeast inflows in between.

飑线不同位置的水平风场结构有很大不同，在飑线北端，低层是气旋性辐合风场，飑线南端是反气旋性辐合风场，而中部沿强对流窄带的前部是偏西和东南风的风场辐合。

On one hand, it changes the distribution of meridional wind, thus the geostrophic vortivity develops in the ridge region on the south of the subtropical high at 500 hPa. On the other hand, it causes inhomogeneity of the vertical distribution of diabetic heating, triggering anomalous cyclonic circulation between two ridges and anticyclonic circulation in the ridge region on the south.

这一方面改变了经向风的分布，使500 hPa副高南侧脊线区域地转涡度平流项发展；另一方面引起非绝热加热垂直分布不均匀，在两脊线之间诱生一异常气旋性环流，在南侧脊线区生成异常反气旋环流。

Through simple Gaussian line fits, we found not only obvious Fe K line variability with no significant difference in the X-ray continuum flux between two ASCA observations which were separated by～440 days, but also rapid variabilities of Fe K line on time scales～10〓s within the second observation.

使用简单的高斯线拟合我们发现，在间隔440天左右的两次ASCA观测之间，NGC 4051的铁Kα荧光线轮廓和强度有着明显变化，而与此同时X射线连续谱流量保持不变；不仅如此，我们发现在第二次ASCA的观测过程中，NGC 4051的铁Kα荧光线有着10〓s尺度上的快速变化。

Based on the analysis of the mechanism of robot manipulators, a trajectory tracking controlling research model is first built up with ADAMS, and its mathematical model is formulated through the study of robot kinematics and dynamics. After the modeling errors are analyzed in practical robotic systems, a conception of centralized error is brought forward according to the theory of weighting functions. In the case of modeling errors' exist, the robotic uncertain model is derived by introducing an auxiliary control variable into inverse dynamic analysis. The control strategy of robust exponential convergence is applied to the robotic uncertain model, the applicable conditions and the applicable controller with this application are presented. The stable control effect under three main model uncertainties (parametric errors, joint disturbs, joint frictions) are systematically studied on the previously built research model. The problems of robust exponential convergence controller which often results in unstable output and so produces a large relative error when the input trajectory is in a small range are resolved by adjusting the control parameters based on the controller's structure.

本文在机械手的机械结构分析基础上，利用ADAMS建立了用于机械手轨线跟踪控制研究的机械手模型；通过对机器人运动学和动力学问题的研究，建立了机械手研究的数学模型；分析了机器人系统中模型误差的主要来源，根据加权函数法分析，提出了模型集中误差的概念；在存有模型误差的情况下，采用逆动力学结构并引入辅助控制量，由机器人误差模型推导了机器人非确定性模型；提出了采用鲁棒指数收敛法对上述机器人非确定性模型进行鲁棒镇定的控制策略，并给出了对机器人进行鲁棒指数收敛控制时系统不确定因素应满足的匹配条件；针对机械手研究模型，深入研究了鲁棒指数收敛控制器对机器人系统中常见的模型参数误差、关节扰动、关节摩擦等不确定因素的镇定控制效果；针对鲁棒指数收敛控制器易产生控制量振荡的问题以及在小范围内系统轨线跟踪的稳态误差过大问题，本文分别提出了基于控制器结构的控制参数调整法和基于轨线跟踪范围大小的控制参数分段切换法。

Based on the existed method for interpreting line drawings, we put forward a kind of recursive method for computer interpretation of line drawings under orthographically axonometric projection. Our method can be used to interpret to the hidden-parts-drawn and the natural line drawings.

在已有基于点与平面的相对位置关系解释线框图研究成果的基础上，提出一种计算机递归解释线框图的方法，主要针对的是正轴测投影线框图的计算机解释。

At the same time, we also provide the bare copper wire, tin plating lines, braided lines, for medical use lines, digital communications lines and other products, and customers will be pleased to develop and produce the special specifications of wire and cable products.

同时，我们还提供裸铜线、镀锡线、编织线、医疗用线、数字通讯线等产品，并乐意为客户开发和生产特殊规格的电线电缆产品。

The slope of the neckline will affect the pattern's degree of bearishness: a downward slope is more bearish than an upward slope.

颈线的角度将会影响头肩顶组合的向下反转的程度，向下的颈线比向上的颈线更有力。

We used NCAR/NCEPT anew analyze data and the method of bilinearity insert to fix on profile distribution of several physical field in the air on observation point and the stream field of 700hPa. We primary discussed the possible mechanism to influence aerosol size distribution.The atmospheric condition of 1000hPa~700hPa level had great influence on aerosol size distribution, and influence on coarse particle mainly below 850hPa level. The horizontal wind velocity of 925hPa level is a primary gene which contributed to coarse particles in the air. Vorticity profile especially below 700hPa level is a key gene to influence diffuse and convergence of local aerosol. The air vertical motion velocity greatly influenced aggregation and remove of aerosol particles. The vertical distribution of air temperature mainly influenced vertical transportation of aerosol.

利用NCAR／NCEP逐日再分析资料，通过双线性插值方法，确定观测点上大气中几个物理量的廓线分布；及700hPa的流场，初步探讨了影响大气中气溶胶粒子谱分布的可能机制： 1000hPa～700hPa的大气状况对气溶胶粒子谱分布影响显著，对粗粒子气溶胶的影响显著的主要集中在850hPa以下；925hPa的水平风速是影响大气中粗粒子气溶胶的一个主要因子；涡度廓线(尤其是700hPa左右及以下的涡度廓线)是影响局地气溶胶的扩散的一个关键因子；大气的垂直运动速度对气溶胶的聚合及移出影响较大；大气温度的垂直分布主要影响气溶胶垂直输送。

Through finding the bisector s of neighboring boundary elements, points of intersection of neighboring bisector s are obtained.

通过求解相邻边界元素的平分线，计算出相邻平分线的交点，由距离最小的平分线交点实现 Voronoi图边的增长，最终建立完整的平面单连通域的 Voronoi图。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。