So he asked an artist to carve two such seals for me.
因此他请一位艺术家为我刻了两枚此印。
Replaceable hose filter and valve stem seals for field reliability.
可更换软管过滤器和阀门阀杆密封，使得现场应用可靠行更高。
Then followed the local governments who needed seals for similar function.
随后，他需要类似功能的密文的地方。
Seals for furnace doors steam valves and flanges, fire flame proof curtains.
炉门、阀门、法兰密封、防火门及防火卷帘材料；
Only designated employees should distribute container seals for integrity purposes.
只有指定的员工应分发完整的目的集装箱封条。
To prevent a recurrence, the FDA mandated new tamper-proof seals for over-the-counter drugs.
为避免此类状况再次发生，美国食品管理局对非处方药的非干扰密封做出了新的规定。
Mixers are furnished with standard ANSI flanges with shaft seals for use on closed vessels.
搅拌机是配有标准的ANSI法兰与轴密封件用于封闭容器。
Sure they might look cuddly at the zoo, but in the wild they eat elephant seals for breakfast.
没错，动物园的北极熊看上去非常可爱，但是在野外，海象可是他们的早餐哦。
Please note the temperature and pressure resistance of the seals for increased process conditions.
请注意温度和压力的增加，工艺条件的封条阻力。
The speed of the machine for the product with high viscosity becomes slower: check all seals for leakage.
对高粘度的产品速度应变慢；各部位密封是否泄漏。
Designs and manufactures of mechanical seals for water pumps applied in engines for cars, trucks, buses and sport cars.
设计并生产汽车，卡车，客车及跑车发动机水泵用的机械密封件。
Kit allows multiple connection options. Adapters use O-ring seals for easy connection to threaded valve. Complete Kit includes.
组件提供多种连接方式备选。适配器采用O形环密封，易于连接到螺纹阀门上。完整的组件包括。
How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.
在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。
These have instructive meaning of designing and selecting seals for construction machinery and other hydraulic machinery manufacturers.
对工程机械生产厂家以及其他液压机械的生产厂家的密封的设计和选用具有指导意义。
This paper introduces the new design of seals for cam grinder's axial end or revolving spindle in dry gas containing particulate matter.
文章介绍了一种在干燥、含固体颗粒气体介质条件下旋转轴密封的新设计。
The metering valve is easily disassembled and cleaned, using stainless steel wetted path components and Teflon seals for the widest range of chemical compatibility.
该计量阀很容易拆卸和清洗，使用不锈钢路径部件和聚四氟乙烯密封，具有最大范围的化学兼容性。
The paper introduced typical structure of the close clearance seals for blade tip seals in modern aero-turbine and the research progress of gas film seal for gas turbine.
本文介绍航空燃气轮机转子叶尖“紧间隙”密封的典型结构型式现状，转子内流系统应用气膜密封的有关研究进展。
In this paper, the failure mechanism of plunger seals for injection pump used in oil field is investigated and the features of existing reciprocating seal structures are evaluated.
对大功率油田注水柱塞泵柱塞密封的失效机理进行了论述，分析了现有几种典型的密封结构。
The machinery seals for twin concentric shaft stirring reactors were presented. The machinery seals were advanced in structure, had high parameters and good application efficiency.
介绍了一种双同心轴搅拌反应釜用机械密封。该机械密封有结构先进、参数高、使用效果好等特点。
Main products: all kinds of seals for Petrochemical Industry (EOG), Hydraulic cylinder, cylinder, Valve, Metal gate as well as special design products according to different requirements.
主要产品有：石油石化行业(EOG)密封、液压油缸密封、气缸密封、泵阀密封和五金门控缓冲密封，也可以根据用户使用要求设计特殊用途的产品。
Stephen Pax Leonard will soon swap the lawns, libraries and high tables of Cambridge University for three months of darkness, temperatures as low as -40C and hunting seals for food with a spear.
斯蒂芬·帕克斯·伦纳德在未来的三个月里将告别剑桥大学的茵茵绿地、图书馆与贵宾餐桌。取而代之的是无边的黑暗、零下四十度的严寒，他还要用鱼叉猎海豹果腹。
Development and production of conventional and adjustable water pumps and oil pumps, transmission oil pumps and modules for the automotive industry and mechanical seals for industrial engineering.
开发和生产汽车行业发动机传统水泵及可调式水泵、油泵、冷却模块、变速箱油泵，以及工业工程领域应用的机械密封。
The structure, technical parameters, main feature, design&calculation and test auxiliary system and so on of new and high-performance test device for mechanical seals for agitators were introduced.
介绍了新型高参数釜用机械密封试验装置的结构、技术参数、主要特点、设计与计算及试验系统等。
The technological knowledge needed to carve it was far superior to that for stamp seals, which had happened in the early Neolithic period.
雕刻它所需要的技术知识远远超过了新石器时代早期出现的印章。
Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period.
与其他phocids物种（如灰海豹）相比，港海豹体型较小。众所周知，灰海豹在整个哺乳期都禁食。
He was searching for tiny engraved seals attributed to the ancient Mycenaean culture that dominated Greece from the 1400s to 1200s BC.
他在寻找属于古代迈锡尼文化的小型雕刻印章，该文化在公元前15世纪至1200年统治着希腊。
Polar bears like hunting for seals to eat.
北极熊喜欢捕食海豹。
They have pushed down the number of polar bears and seals while polar bears depend on sea ice for hunting seals.
它们导致了北极熊和海豹数量的减少，而北极熊依靠海冰捕食海豹。
For door bottoms there is a wide range of types with brush or wiper seals.
对于门扇底部，有很多种类型的刷子或刮垢环。
For door bottoms there is a wide range of types with brush or wiper seals.
对于门扇底部，有很多种类型的刷子或刮垢环。
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