介绍国内第一艘大型半潜式旅游潜艇的主尺度、总体性能、总布置、艇体结构及主要设计特点。

In this paper, principal dimensions, general capacities, general arrangement, hull structure and main design specialties of the first large semi-submersible tourist submarines at home are discussed.

youdao

介绍欧洲新型公共汽车的主要设计特点，包括：提高了的价格—效果比、可接近性和环境友好性。

Key features reflected in the new designs of European buses include increased cost effectiveness in construction techniques and operating costs, accessibility, and the environment.

youdao

介绍了基于可编程序控制器和工业显示触摸屏的大型贯流式水轮发电机组轴承油系统控制装置的主要设计特点。

The control device for large bulb unit bearing oil system is ba sed on the programmable logic controller and programmable operator interface.

youdao