For digital signatures to be acceptable beyond a single organization there must be key distribution centres that hold the public keys of many individuals and services.

And I hold the keys of death and Hades.

我举行键的死亡和阴间。

To more than 50,000 ton oil terminal, accommodation ladder of oil tanker is difficult to form its own safe passage between bank and the oil tanker. Therefore, boarding ladder become an indispensable key equipment to a large oil terminal.

对于5万吨级以上码头，油轮上自带的舷梯难以形成岸与船的安全通道，因此登船梯成了大型码头不可或缺的关键设备。

Boarding ladder is a special equipment. In the process of terminal operation after the ship berthing at various modern large-scale oil terminals, terminal operators and crew members safe and smooth ship equipment from top to bottom.

登船梯是各种现代化大型码头在船舶靠泊后码头作业过程中，码头作业人员和船员安全顺利上下船舶的专用设备。

Carry on an actual calculation through optimization, thus preferably carry out optimization design for location of fore-ladder oil cylinder of boarding ladder.

通过优化进行了实际计算，从而较好的实现了登船梯前梯油缸位置的优化设计。

The Development and Application of the 3D Parametric Design System for Boarding Ladder of Large-scale Oil Terminal

大吨位油码头登船梯三维参数化设计系统开发与应用

Roof Isolation Boarding Used as An Aseismic Method in Design of Extension Storey on Masonry Building

屋面隔热板减震措施在加层设计中的应用研究

Because the types of member and roof boarding obtained by the traditional division methods of spherical surface lattice are more and the expenses are great, it is few to make use of the latticed shell in practical engineering.

但是传统的球面网格划分方法造成杆件和屋面板类型较多、费用较高而影响了这种结构的应用。

Standardization and Diversity of Steel Housing System C payments, roof boarding processing; Light structural steelwork, rack manufacture, marketing; Steel sales.

轻钢轻板住宅体系的标准化与多样性C型钢、面板加工；轻钢结构、架制造、售；钢材销售。

Reason analysis and prevention measures for roof boarding cracks of concrete building

混凝土楼屋面板裂缝原因分析与防治措施

Coal Gangue ALC Board will be wildly used in external wall panel, inner wall panel, roof boarding.

煤矸石ALC板可广泛应用于多层钢结构住宅的外墙板、内墙板和屋面板，本文对各种板的截面形式、板型及使用范围进行了系统论述。

Bemo-roof system is used as roof boarding of Huanglong Gymnasium in Zhejiang Province.

浙江省黄龙体育馆的屋面板采用贝姆屋面系统。

B: Yes, it's on the next floor up. There are, generally speaking, two types of timber floors, namely: ( a) Single Floor;( b) Double Floor. All timber floors are covered with floor boarding, described later.

乙：就在上面一层楼。一般来说，有两种木楼面，即：单层楼面和双层楼面。所有的木楼面都用木板铺盖，详述于后。

Floor boarding is laid in varying widths, the individual boards usually being tongued and grooved to one another and nailed to the floor joists.

楼板铺设的宽度是不等的。每条木板通常企口相连接，并钉在楼板梁上。

Analysis of stamping technology and design of drawing die for car front floor boarding Comprehensive Technology of Outburst Prevention and Bumping Prevention for Deep Coal Mining Face

汽车前底板冲压工艺分析与拉深模设计深部回采工作面防突防冲击地压综合技术

All timber floors are covered with floor boarding, described later.

所有的木楼面都用木板铺盖，详述于后。

Mother: I think self-willed children, the main reasons for adults.

杨浩天妈妈：我认为孩子任性，主要是大人的原因。

But I like the arrogant, imperious, imposing, self-willed I.

不过我喜欢高傲，专横，威风，任性的自己。

I may not be perfect, a bit self-willed little disadvantage.

我可能不是完美的，有点任性的小缺点。

Study on the Dynamic Characters of Motorcycle s Man-machine Rigid-flexible Coupling System; The Design and Performance Reach on Energy-absorbing Equipment for Tramcar Arresting Gear

摩托车人&机系统刚柔耦合动态特性研究柔性斜井跑车防护系统吸能装置的设计与研究

In the premise least change automobile braking system original structure, Merges among this hydraulic system into the original braking system, takes a assistance arresting gear.

本文着力于设计，研究一种液压伺服系统，在最少改变汽车制动系统原有结构的前提下，把此液压系统并入其中，作为一个辅助制动装置。