Figure 1 shows the middleware infrastructure in relation to the first application to use it (shown in bold), and future applications and future back-end systems (shown in gray).

图1显示了与第一个应用程序有关的中间件基础设施(以粗体显示)，以及未来的应用程序和后端系统(以灰色显示)。

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But as NASA looks back at the Apollo 1 accident, it also is looking ahead to an uncertain future.

宇航局一方面回顾阿波罗一号的意外事件，另一方面也要面对一个前途未卜的未来。

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Floats included a duct-tape DeLoreon car from the film Back to the Future made with 1, 300 rolls of tape, and a hovercraft with the Star Wars character R2-D2 riding atop.

BBC: In Ohio, duct tape designs take centre stage