Most school districts do not test their water because of the costs associated with lead remediation, said Marc Edwards, a civil engineer at Virginia Tech.
在弗吉尼亚理工大学的土木工程师马克·爱德华兹说，大多数学区因为铅治理的费用而不检测他们的饮用水。
These new tech improvements, and constantly lowering costs, are creating what amounts to the perfect storm for starting a freelance business.
这些新的科技进步以及成本的持续性降低，在很大程度上引起了这股自由职业的流行风潮。
Manufacturers of small high-tech electronics goods, where freight costs account for a tiny fraction of the retail price, may not be that bothered about hedging freight rates.
小型高科技电子产品的制造商可能不需要为规避运价而烦恼，因为运价只占据其售价的一小部分。
A high-tech message center might cost a lot up front, but it costs pennies on the dollar to reach every car or pedestrian that passes by.
高科技信息中心最开始的花费可能会很高，但是它传达给经过车辆或行人的信息成本却是很低的。
New construction codes encourage the use of double-glazed Windows to reduce air-conditioning and heating costs and high-tech light bulbs that produce more light with fewer watts.
鼓励新建筑采用双层玻璃窗以减少空调和取暖的消耗；生产瓦数更低而更亮的电灯。
The Ghost also costs 100 minerals and 200 gas, needing the prerequisite tech lab on the Barracks and Ghost Academy.
鬼兵造价为100矿，200气，需要兵营，科技实验室和鬼兵学院作为前提。
The Ghost also costs 100 minerals and 200 gas, needing the prerequisite tech lab on the Barracks and Ghost Academy.
鬼兵造价为100矿，200气，需要兵营，科技实验室和鬼兵学院作为前提。
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