线的

Spring-loaded foot for free-motion embroidery, quilting and free form monogramming.

透明的脚座可清楚的看见压线的位置，使用时多将送布齿降下，靠双手自由移动车缝物件的位置，多用於车缝拼布作品的压线，适用刺绣机种

From the beginning and development of lines ,this paper discusses all kinds of abstract substance of lines in the pictures of original potteries and analyses various beauty caused by different natures of lines .

从线的产生发展谈起，对原始彩陶图案中线条的各类抽象物质进行论述，分析了不同的线性、线质所造成的不同的形式美感。

In this paper, for the single-phase earth fault occurred in one circuit of the double-circuit transmission line an adaptive distance protection approach for parallel double-circuit transmission line is proposed.

平行双回线结构的特殊性以及零序互感等因素造成距离保护继电器耐受过渡电阻的能力较弱，严重影响继电器的性能，传统的距离保护方法难以满足高压平行双回线的要求。

Our factory is the production of packaging machinery industry in the earlier single-sided machine, printing machine, three line, five-line units, has a wealth of production experience and perfect product quality and better after-sales service, so that I become the country's carton plant Machinery industry leader.

本厂是包装机械行业较早生产单面机、印刷机、三层线、五层线的单位，有着丰富的生产经验和过硬的产品质量以及较好的售后服务，使我厂成为全国纸箱机械行业中的佼佼者。

The principles supply a basis for minerogenetic prediction of the major and world class multi-metal deposits in mid-Asian area, specially in Xinjiang. The author believes that the secondary order fault system with a space of 1000km control minerogenetic provinces that have potential for discovering world class deposits in mid-Asian area, and then points out that the two typical minerogenetic provinces are: southwest Tianshan area and Altay area.

通过对中亚地球物理场特征-基底构造-已知大型矿床分布规律的系统研究，论文着重探讨了在中亚地区寻找大型、超大型多金属矿床的基本原则：大型、超大型多金属矿床除受构造缝合线控制外，同时受三组基底构造的控制；大型、超大型多金属矿床位于&两隆两坳&构造缝合线的两侧和三组基底构造相交的复合部位。

The locus equation of the roulette of the simple fixed axis gear train was derived by transforming coordinates first, and some typical figures were demonstrated by computer. The relationships among characteristics and forms of the roulettes and the transmission ratios, mechanism parameter and the original phase angles were investigated.

首先应用坐标变换的方法推导出了简单定轴轮系的旋轮线的方程，并利用计算机画出了一些典型图形，研究了旋轮线的性质、形状与传动比、尺度参数和初始角的关系。

The is related to the frequency dependent absorption cross section and the density and spatial distribution of atoms in the lower level of the transition. Position dependent 5P3/2 state densities had been combined with the collisional broadening rate 5P3/2 5S1/2 line due to both helium and cesium perturbers to yield the .The effective radiative rates of the Rb D2 line as a function of the He pressure PHe were obtained . The fluorescence intensity I780 of the 5P3/2 5S1/2 emission was measured simultaneously.

由于辐射陷获存在，有效辐射率是自然辐射率与透射因子（发射的光子在探测区域内没有被吸收的平均概率，它与吸收截面及激发态原子密度和空间分布有关）的乘积。5P3/2原子密度及其空间分布结合5P3/2 5S1/2跃迁线的碰撞增宽计算了透射因子，从而得到了不同He气压下，Rb D2线的有效辐射率。

Aimed at the shaking problem at the moment of high speed paper feeding by paper separation suction nozzle of feeder of the press, a set of inverse seeking designing method for the suction nozzle of paper separation mechanism was provided.

针对印刷机飞达分纸吸嘴高速输纸时的抖动问题，提供了一套分纸吸嘴机构反求设计的方法。根据实测凸轮廓线离散坐标，利用样条插值法得到了实际廓线的解析方程；构建了分纸机构运动反求的数学模型，得到了从动件及分纸吸嘴的运动规律。

The patented optimal inserted direct-drive servomotor. Rotary cutter. Convenient installation, clean and non-polluted, low noise and vibration. Combined with aerospace technology, high speed startup/brake, precise needle stop locating. It only takes 0.12s from 0 to 4000 stitches. The absence of V-belt avoids belt abrasion and spooling thoroughly. Reduce greatly the failure rate and improve highly sewing efficiency.

优化的内置式专利直驱伺服马达；圆刀剪线设计；低振动、低噪音、安装方便、清洁环保；结合了航空航天技术，起缝、停车迅速、停针定位精准，0至4000针的转换只需0.12秒；无&V&字型皮带传动，彻底解决了因皮带摩擦而产生的料屑污染、皮带缠线的问题，并且大大减少停车、提速时的故障率，提高缝制效率。

The patented optimal inserted direct-drive servomotor. Rotary cutter. Convenient installation, cleannon-polluted, low noisevibration. Combined with aerospace technology, high speed startup/brake, precise needle stop locating. It only takes 0.12s from 0 to 4000 stitches. The absence of V-belt avoids belt abrasionspooling thoroughly. Reduce greatly the failure rateimprove highly sewing efficiency.

优化的内置式专利直驱伺服马达；圆刀剪线设计；低振动、低噪音、安装方便、清洁环保；结合了航空航天技术，起缝、停车迅速、停针定位精准，0至4000针的转换只需0.12秒；无& V &字型皮带传动，彻底解决了因皮带摩擦而产生的料屑污染、皮带缠线的问题，并且大大减少停车、提速时的故障率，提高缝制效率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。