Secondly, the single offset reflector antenna and dual offset reflector antenna are studied and designed.

其次分别对单偏置反射面天线、双偏置反射面天线进行研究和设计。

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But lower demand will be offset by a scheme to phase out single-hull ships on environmental and safety grounds in European and North Atlantic waters.

但是，出于环保和安全考虑，欧洲和北大西洋海域制定了淘汰单壳油轮的计划，这将抵消下降的石油需求。

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It computes a single cycle time for all intersections, splits this cycle time into green times for each intersection and then adjusts offset times in order to minimise waiting times.

这项技术为所有交叉口计算一个单一的周期时间并将这个周期时间分割成每一个交叉口的绿灯时间，而后调整相位差，以便将等待时间减至最少。

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Mr Bell said that reflecting these strong male images, girls can be less confident than boys in class - and he said some schools were experimenting with single-sex classes to offset this.

BBC: NEWS | UK | Education | Buffy to slay girls' meekness

But lower demand will be offset by a scheme to phase out single-hull ships on environmental and safety grounds in European and North Atlantic waters.

ECONOMIST: Shipping in the downturn

While there isn't a single formula for assembling a salad in the French style, the best ones offset crisp lettuce with savory, succulent bites of meat, cheese and seasonal vegetables.

WSJ: Eric Ripert's Artichoke, Fennel and Arugula Salad