第一架飞机用了一年多的时间才完成计划维护间隔（PMI）1、2、3，并在另一个计划维护间隔完成前，将增加5到6年的服役时间。
The first aircraft took more than a year to complete the Planned Maintenance Intervals (PMI) 1, 2, and 3 that will add five to six years of service life to the aircraft before another PMI is due.
在周三午夜，在没有空中交通管制员指引的情况下，间隔很短的两架飞机降落在RonaldReagan华盛顿国际机场。
On March 23, two airplanes landed at Ronald Reagan Washington National Airport shortly after midnight without an air traffic controller.
在周三午夜，在没有空中交通管制员指引的情况下，间隔很短的两架飞机降落在RonaldReagan华盛顿国际机场。
On Wednesday, two airplanes landed at Ronald Reagan Washington National Airport shortly after midnight without an air traffic controller.
纵向电缆架应安全稳固的安装，其间隔不超过1.5米。
Vertical cable racks shall be securely supported at intervals not exceeding 1.5 m.
澳州航空的新闻发言人说，两架飞机当时呈垂直间隔的状态。
However, a Qantas spokeswoman says the planes were flying one above the other.
二楼的主用餐区中间布饰鸟笼吊灯和镶嵌蓝色花形马赛克的黄铜架，无间隔的室内外使人身处其中时感觉更亲近自然。
The second floor's main dining area has the birdcage chandelier and the blue flower mosaic with brass frame as the center points.
在扶手、间隔档、板和进出门齐全的脚手架平台上工作的人员，如果在平台区域内部工作，不需要系牢自己。
Personnel working on a scaffold platform with full handrail, mid rail, toe boards and gated access are not required to tie off when working inside the platform area.
保持架：轴承组件中用于使滚子保持一定间隔分布在内圈滚道上的装置。
CAGE: Spacer used to maintain proper roller distribution around cone in assembled bearing; holds unit together.
间隔挡块组设置在平板架顶面并与集装箱规格相对应。
The interval block groups are arranged on the top of the flat plate frame and correspond to the type of the container.
在脚手架两端及中间部位每间隔15m，应设一道剪刀撑，以加强其纵向稳定性。
On both ends of scaffolding and middle intervals of 15 m, should establish a bracing, in order to strengthen its longitudinal stability.
在自由飞行中，为了保证飞行安全，任何两架飞行器之间的距离不能小于给定的安全间隔，冲突探测与解脱技术将是提高飞行安全与效益的关键。
In order to assure flight security, the research on the technologies and arithmetic of conflict detect and conflict resolution is the key to improve flight security and benefit.
在自由飞行中，为了保证飞行安全，任何两架飞行器之间的距离不能小于给定的安全间隔，冲突探测与解脱技术将是提高飞行安全与效益的关键。
In order to assure flight security, the research on the technologies and arithmetic of conflict detect and conflict resolution is the key to improve flight security and benefit.
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