To date, 58 U.S. nuclear submarines have been equipped with Sperry Marine VMS-based navigation systems, and 92 percent of them have been certified to use ECDIS-N as the primary navigation plot.
迄今为止，美国的58艘核潜艇都已配备了斯佩里海事VMS导航系统，其中92％已经获得认证，使用ECDIS-N作为主要的导航图。
The random nature of the date and targeting suggests a plot that may have been brought forward, while the scale of the attack suggests it must have been in the pipeline for some time.
此次袭击在日期和目标上的随机性，表明相关袭击计划可能被提前了，而此次袭击的规模表明该计划已经酝酿了一段时间。
The assay use split plot design on two factors, including the date of seeding and density, to define the better density and most suitable date of seeding on sand Jerusalem artichoke.
本试验采用播期与栽培密度两因素的裂区设计，以确定沙地菊芋种植的较佳密度和适宜播期。
To date, 58 U. S. nuclear submarines have been equipped with Sperry Marine VMS-based navigation systems, and 92 percent of them have been certified to use ECDIS-N as the primary navigation plot.
迄今为止，美国的58艘核潜艇都已配备了斯佩里海事vms导航系统，其中92%已经获得认证，使用ECDIS - N作为主要的导航图。
To date, 58 U. S. nuclear submarines have been equipped with Sperry Marine VMS-based navigation systems, and 92 percent of them have been certified to use ECDIS-N as the primary navigation plot.
迄今为止，美国的58艘核潜艇都已配备了斯佩里海事vms导航系统，其中92%已经获得认证，使用ECDIS - N作为主要的导航图。
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