In the active structural acoustic control based on radiation modes, the cancellation of the dominant radiation modes and determination of the arrangement of secondary forces are of virtual important.

在基于声辐射模态理论的结构声有源控制中，主导辐射模态的确定及抵消策略是至关重要的，它直接决定次级力源的优化布放及有源控制的效果。

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Soil water plays the dominant role on soil respiration in re-vegetated desert area, while temperature and the type and phrase of plant community are secondary.

在沙漠人工植被区，影响土壤呼吸的主要因子是水分，其次是温度与植物群落类型和发育阶段。

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Reservoir study shows there have been primary and secondary reserving pores developed in the volcanic rock reservoirs of this area, the secondary pore being dominant.

储层研究表明，本区火山岩储层主要发育原生和次生两种储集空间，以次生储集空间为主。

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But the rivalry between the Bears and Packers and the uniqueness of these teams playing in the playoffs is likely the more dominant explanation for the discrepancy in secondary ticket prices.

FORBES: Bears-Packers Tix Prices Top $900. Jets-Steelers? $425

Houston's Bush Intercontinental shows how airlines at dominant hubs with lots of business travelers increasingly seem to be ignoring cheaper pricing competition at secondary airports in big cities.

WSJ: Why It Costs So Much to Fly From These Airports