Fortunately for us, we have a testbed and a proving ground much, much closer to Earth.

幸运的是， 我们有一个离地球近得多的试验台和试验场。

Indeed, both Airbus and Boeing are known to  add on a different engine to testbed aircraft.

事实上，众所周知，空中客公司和波音公司都为测试飞机添加了不同的发动机。

The 757 testbed aircraft has been at the forefront of some significant tests performed by  Honeywell Aerospace over the years.

多来，757 试验台飞机一直处于尔航空航天公司进行的一些重要测试的最前沿。

The now 38-year-old airplane joined Honeywell  in 2005 with the registration N757HW. Joe Duval, Director of Flight Test Operations at  Honeywell, calls the aircraft a generic flying testbed.

这架现 38 岁的飞机于 2005 加入尔，注册号为 N757HW。尔飞行测试运营总监 Joe Duval 将这架飞机称为通用飞行试验台。