The set of limitations within which a technological system, especially an aircraft, can perform safely and effectively.

技术系统，尤其是飞机，能够安全有效运转的一系列界限。

youdao

One forgotten update can be the cause for severe damage and costs, especially if it is an important requirement for, as an example, an aircraft or a medical device.

一次被遗忘的升级，可能导致严重的错误和成本代价，特别是如果升级是非常重要的需求时更是这样，例如飞机和医疗设备的更新情况。

youdao

Additive manufacturing could thus help build greener aircraft-especially if all the 1, 000 or so titanium parts in an airliner can be printed.

因此，加法制造技术有助于建立更加绿色环保的飞机，特别是当客机的1,000多个钛材料部件都可以被打印出来。

youdao

Everything the pilot needs is available at the touch of a button, which is something especially important for an aircraft approved for single pilot operations.

FORBES: The Most Successful Aircraft Design Gets Even Better

The increase was driven by a surge in demand for commercial aircraft, an especially volatile category.

NPR: Health Insurers Lead Stocks Higher On Wall Street