In transport the equivalent of a smart meter is a vehicle's on-board unit.

在交通运输领域，相当于一块智能电表的是汽车上的一个车载单元。

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Coal contains less energy per unit of weight than weight than natural gas or oil; it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain.

煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。

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Transport refrigeration mechanics are included in this unit group.

运输制冷技工也包含在本单元组。

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In partnership with a local technical college, Stark State in Canton, and Lockheed Martin, TMI is developing a military application that promises to greatly reduce the need for a front-line unit to transport and secure large quantities of gasoline or diesel fuel.

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One of the most anticipated reforms is the division of the railways ministry as a policy and regulatory unit under the transport ministry.

BBC: China media: Railways ministry

Its chairman, Phillip Goodwin of London University's Transport Studies Unit, has written extensively on the politics of road pricing.

ECONOMIST: Driving Britain off the roads