| 释义 |
1 ?凿井费 ... 凿井工：sinker 凿井费：sinking cost 凿井法：sinking method ... 2 ?沉没成本 沉没成本(sinking cost)： 沉没成本是指在决定前就已经发生的成本，而 后不影响决策。
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The invention airship has great buoyancy and is no sinking, no swinging, very fast all of which boost up battle effectiveness. Its cost is low and is capable of extension. 本发明浮力大，不会沉没，不摇摆，速度快，增强了战斗力，造价低廉，便于推广。 - 2
The heat radiation body of the heat radiator of the invention can realize uniform die sinking, and can not generate waste cut materials, so the cost is effectively reduced. 本发明散热器的散热体可统一开模，且不会产生切削废料，从而有效降低了成本。 - 3
By taking energy dissipation, heat sinking and hardware cost into consideration, a driving module using switching voltage amplifier was designed. 考虑能耗，散热和硬件成本等因素，采用开关式电压放大器，设计了压电晶体执行器的驱动模块。
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