There are some problems in modelling karst water circulation using hydrological model as lack of information of groundwater distribution in karst system (black box or grey box).

由于岩溶地下水分布难以量测，岩溶水文系统多为黑箱或灰箱，采用岩溶水文模型量化其水循环过程常存在许多疑难问题。

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The pattern was disconcerting because of the lack of common circuitry that could easily explain the pattern of such failures—a single box that could be blamed.

这种类型的故障让人不安，因为没有什么共用的电路可以轻易解释这些故障模式——即只有一个机箱部位引起的故障。

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As well as defensive uncertainty, one other thing stood out to me as I shivered in the press box along with, among others, Arsenal boss Arsene Wenger - Italy's shocking lack of creativity.

除了防守的不稳，在媒体室里还有一件事引起了我的注意。阿森纳的主帅温格说，意大利非常的缺乏创造性。

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S. -We're going to give them a pass in our review on the lack of out of box Symbian and Mac support, as their packaging suggests it should have.

ENGADGET: Slingbox PRO hands-on

Despite strong objections to the lack of a tick-box, everyone, Labour said, should fill in the forms when they arrive through the letterbox next April.

BBC: Assembly's census row demand

Kilmarnock were pinned back for long spells in the second half and Bell kept his side in the game with some smart stops, although Stuart McCall's men were guilty of a lack of composure in the penalty box.

BBC: Sport - Football - Motherwell 0-1 Kilmarnock