无齿的

A new air seal equipment, that is the high minus pressure contact airproof technology for wind box of the head and tail of sinter machine, without riveting twin sheet iron are proposed.

针对这一问题提出了新的密封结构——高负接触头尾密封装置、无铆接双板簧和新的传动方式——星轮传动的变齿距设计以及增设尾部液压阻尼装置。

At first the structures of the face harmonic motion drive of separate tooth are analyzed. Its principle of work is given. And simple chart of dynamic mechanism without superfluous constraints is established according to contact and junction of components each other.

首先介绍了散齿端面谐波齿轮传动的结构，分析了其工作原理，根据各构件间的相互接触和联接情况建立了传递动力、无多余约束合理的机构运动简图。

Methods To research and analysis the 28 cases by monofilament polypropylene synthetic nonabsorbable cogs thread without eola incision in recent 2 years.

对近两年28例的单丝聚丙烯合成非吸收齿状线进行无乳晕切口的乳房松垂矫治固定术中的应用进行总结与分析。

Low pressure vacuum carburizing and high pressure gas quenching ,was adopted to ring gear of motors.

本文通过对轿车齿套的试验证明，采用低压真空渗碳+高压气淬的热处理方法，可得到较小的变形，且具有环保、节能、无表面内氧化、生产率高等优点。

The electromagnetic spring with tooth structure is adopted in this paper to adjust the stiffness of isolator, which make the isolator work with different stiffness in different excited frequencies. So the isolation performance is improved as the resonance frequency is eliminated in a broad band.

本文采用齿形结构的电磁弹簧来改变隔振器的刚度，使隔振器在不同外扰频率下变刚度运行，从而能实现在较宽的频带范围内无共振峰，改善隔振性能。

Leaf blade abaxially pilose or sparsely pubescent; teeth along bract margins and sometimes along leaf blade margins aristate and with a claviculate apical gland; hypanthium outside basally pilose to subglabrous; sepals margin sparsely ciliate.

叶片背面具柔毛的或疏生短柔毛；沿着苞片边缘和有时齿沿着叶片边缘具芒并且具具卷须顶端腺体；基部在外面的托杯具柔毛的到近无毛；萼片边缘疏生具缘毛。 21 C。 dolichadenia 长腺樱桃

Results showed there were no marked distinction (P＞0. 05) bewteen left and right side. One out of fieds in the hippocampus cortex had marked distinction (0.01＜P＜0. 05), CA1 and subiculum＞CA2 and CA3＞CA4 and dentate gyrus.

结果表明，四个年龄组的左右侧毛细血管比容积，均无明显差异(P＞0.05)，海马皮质三个区域之间的毛细血管比容积，有明显差异(0.01＜P＜0.05)，Cal 区和下托区＞CA4 区和齿状回＞CA2 和 CA3 区。

A replaceable excavating tooth point (12) is telescoped onto an adapter nose (24) and releasably retained thereon by an elongated, flat connector member (60) having an untapered side periphery.

可更换挖掘齿尖头(12)套到适配器鼻部(24)上并且由具有无变细的侧圆周的细长扁平连接器构件(60)可松开地夹持到其上。

Fang was the first person who pointed and that no difference was made between the voiced and voiceless bilabials, and between lips, teeth, etc.

方以智第一次提出了古人唇音轻重不分、舌音舌头舌上无别、舌音齿音相混、喉音牙音淆乱的理论，切合古音实际，开启了清代钱大昕等人的系统研究。

The 2×390MW HRSG in Xiamen Eastern Power Plant for combustion engine works adopts the HRSG manufactured by Hangzhou Boiler Group Co., Ltd., which is characterized by three-pressure, reheats, without after－combustion, horizontal type and natural circulation. Since the full set of HRSG designing technology from the US NOOTER/ERIKSEN has been introduced, it matches with PG9341FA type gas turbine, adopting single-row frame construction, full suspension type, and in-line arrangement in the heating surface. The heat conduction components use gear screw finned tube, module type supply and positive pressure operation.

厦门东部燃气电厂2×390MW燃机工程的余热锅炉采用由杭州锅炉厂生产的三压、再热、无补燃、卧式、自然循环燃机余热锅炉，引进美国NOOTER/ERIKSEN公司全套燃气轮机余热锅炉设计技术，它与PG9341FA型燃气轮机相匹配，采用单排框架结构，全悬吊形式，受热面顺列布置，传热元件采用开齿螺旋鳍片管，模块式供货，锅炉为正压运行。

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