The expedition was wrecked by bad planning and poor navigation.

这次探险因计划不周和导航不利而失败。

《柯林斯英汉双解大词典》

Planning the application's navigation before you've started coding is a good way to isolate and correct the problem early on, which makes for a much smoother development cycle.

在开始编码之前规划应用程序的导航，是尽早隔离并纠正问题的好方式，这会形成更平滑的开发周期。

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However you do it, planning your application's navigation is a really simple exercise with tremendous benefits to your development process.

不论如何做，规划应用程序的导航实际上是一个简单但却会大大有利于开发过程的实践。

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America is planning to improve its satellite-navigation system further: next year, it will start launching a second generation of GPS satellites, which will offer greater accuracy for civilian users and, for military purposes, greater protection against the signal being jammed by an enemy.

ECONOMIST: Space race | The

The team is planning all sorts of other capabilities for the tech, including navigation systems -- "Power lines are like highways in the sky, " says one of the researchers -- and auxiliary surveillance systems that power up when jacked in.

ENGADGET: Air Force developing UAVs that can recharge on power lines

Huaqi, a Beijing manufacturer of handheld devices, is planning to build inexpensive, user-friendly portable media players and navigation devices.

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