查询词典 seals

The elastomer material of most rubber seals (Section 6.3.2) is acrylonitrile butadiene rubber also known as nitrile rubber or buna N. For seals which are exposed to special thermal or chemical conditions, more expensive rubber grades may be required.

大部分的弹性体材料生产橡胶密封6.3.2丙烯腈顺丁橡胶也被称为丁腈橡胶或buna是：暴露于特别热或化学条件，更昂贵的橡胶级别也是可能被要求的。

Any of several large eared seals of the north Pacific related to fur seals but lacking their valuable coat.

产于北太平洋的几种海狗，与毛皮海豹有关但没有贵重的毛皮。

Mechanical seals shall be heavy duty cartridge type double mechanical seals to have long trouble free operations.

机械密封件应是耐用的管筒式双端面机械密封，为了长久无故障的操作。

Spotted Seals are the only pinniped animals living and reproducing in china sea,and Liaodong Guif of Bohai Sea is one of the eight breeding area of Spotted seals around the world.

本文利用线粒DNA序列对辽东湾斑海豹的种群遗传结构进行了研究。

The single mechanical seals of five PHP pumps, nine PLA pumps, two THD pumps and nine ZA pumps in the acetic acid plant were changed into dual mechanical seals based on not changing main parts such as casing, impeller, shaft, bearings house etc. to solve the leakage problems of flammable, explosive, poisonous, harmful substances, such as acetic acid, methyl iodide, hydroiodic acid, and propionic acid etc.

通过对醋酸装置中所选用的5台PHP型、9台PLA型、2台THD型及9台ZA型单级卧式脚支撑化工离心泵，在不改变泵壳、叶轮、轴、轴承箱等主要部件的基础上，将原来的单端面机械密封改造为双端面机械密封或串联式机械密封，以此来防止所输送的易燃、易爆、有毒、有害高危介质（如醋酸、碘甲烷、碘化氢、丙酸等）外漏。

Now the market uses most packingtype is trilateral seals the bag which seals with the center.

现在市场用的最多包装类型就是三边封和中封的袋子。

Industrial seals, also known as O-rings, are used in thousands of applications, including pipe joints and valve covers to provide air-tight and water-tight seals.

工业O型密封圈，又名O-rings，在许多方面应用着，包括管的连接和不透气和不透水的安全阀开关。

Seals attached by the natural persons in China has played a decisive role in some documents, and with the rapid change of the society and differences of roles played by the natural persons on different occasions, the legal signification of the seals becomes growingly important in defining the legal status of the natural persons and determining their act in the society.

签章是指某一自然人在民事法律性文件上签名或加盖印章或者签名并加盖印章的行为。其作用在于：一是&要式&作用；二是证据作用。自然人签章会发生在不同的场合，并且，随着签章人担任的社会角色的变化，其法律上的身份不尽相同，签章的法律效力也因此而有区别。故对于签章所产生的法律后果，必须结合签章行为人在某一具体法律关系中的法律身份才能加以界定。

But whereas there are 19 species in the family of so-called true seals, and 14 in the family of fur seals and sea lions, the walrus is the only living representative of the family Odobenidae.

所谓「真海陛v家族，有19种不同的海陛A而「毛海陛v和「海狮」家族则有14种成员；海象是「海象科」家族硕果仅存的代表。

Upper reducer seals are grease purgeable to prevent contaminants from destroying the seals and entering the unit.

上部的减速机是润滑脂密封的，能够防止污物破坏密封进入混合器内部。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。