有螺纹的

S where the threaded portion has an extruded rigid "canula" of small diameter. These are used where the areas of application of the product are specifically defined.

2在管口的螺纹部分有一个小直径的挤压硬管，如果产品的使用部位需要特别界定，则适用这种管口。

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

"Typer" or "torpedo" nozzle tubes have no threaded portion at the nozzle area and require to be pierced with a pin before the product can be squeezed out.

4&锥型&(Typer怀疑是taper锥形管口，typer是打字机的意思，实在想不出应该怎么译)和&破坏式&(torpedo是鱼雷，攻击，破坏的意思，鱼雷式管口或是破坏式管口你自己再看看有没有更专业的译法吧)管口的软管没有螺纹部分，需要用大头针将其刺破，产品才能挤出来。

It was not a simple system with three different spline sizes, three different thread sizes, and eight different spacers.

这不是一个有三个不同的花键尺寸，三种不同的螺纹尺寸，和8个不同的间隔简单的系统。

The most important are as follows: Detection of type: valve stem seal leakage test and test; water valve tightness test; switch tightness test; the take-off safety valve Test; Detection Object: valve, the cut-off valve , safety valve, throttle valve, check valve, swing check valve, ball valve, regulating valve and other hollow pump body, valve body and housing, etc.; way valve connection: flange connection, threaded connection, welding connection; detection medium.

最重要的有以下几种：检测类型：阀门密封性试验及阀杆泄漏性试验；水中阀体密封性试验；开关密封性试验；安全阀的起跳值试验；检测对象：闸阀、截止阀、安全阀、节流阀、止回阀、摆动式逆止阀、球阀、调节阀和其他中空的泵体、阀体和壳体等；阀门联接方式：法兰联接、螺纹连接、焊接联接；检测介质。

CERATIP KYOCERA, is cutting tools is Japan KYOCERA KYOCERA company in the world's most advanced precision ceramic technology as the core of the new generation of turning, milling and CNC machining centers on the use of cutting tools manufacturers, the company specialized in diligently unremitting spirit of innovation, and advanced technology, the application of the material in the different needs of customers, with more and more durable of the target, developed a new generation of pottery and porcelain, metal ceramics, the metal ceramic coatings, carbide and carbide coating, diamond and CBN, and other types of tools, the main products are inside and outside the turning tools, small parts processing cutting tool, cutting tool, cutting tool, drilling, thread milling cutter, plane, end milling machining tool with etc.

京瓷CERATIP尚乐特刀具是日本KYOCERA公司以世界最领先的精密陶瓷技术为核心的新一代车削、铣削及数控加工中心上使用的可转位刀具的专业刀具生产厂商，公司以努力不懈的创新精神，加上最先进的材料技术的应用，针对客户的不同需要，本着的目标，开发了新一代的陶瓷、金属陶瓷、金属陶瓷涂层、硬质合金及硬质合金涂层、金刚石及立方氮化硼等各种类型的刀具，主要产品有内、外园车削刀具、小零件加工刀具、切槽、切断刀具、车螺纹刀具、钻孔刀具、平面铣削加工刀具、端铣刀具等等。

Therefore, in order to enable the screw to smoke, Pai oil separated from the mouth, the screw thread section of the length of at least larger than a lead.

因此，为了使螺杆能吸、排油口分隔开来，螺杆的螺纹段的长度至少要大于一个导程。从上述工作原理可以看出，螺杆泵有以下优点

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐