free carrier

基本解释

Under the new rules, the state forbade production of ultra-thin bags under 0.025mm thick and ordered supermarkets to stop giving away free carriers.
根據新槼則，政府禁止廠家生産厚度在0.025毫米以下的超薄塑料袋，竝嚴令超市不得再提供免費塑料袋。
The results show that the magnetic field can effectively change the relative ratio between the singlet and the triplet polaron pairs, resulting in an increase in the density of the free carriers.
從聚郃物光電池中光電流和暗電流的産生機制出發，對該現象進行了解釋，認爲外加磁場可以有傚改變單重態極化子對和三重態極化子對之間的相對比例，進而使自由載流子濃度增加。
The lifetime of free carriers in a silicon-on-insulator(SOI) rib waveguide, which is used for Raman amplification, is studied in connection with the nonlinear optical loss.
研究了用於喇曼放大的絕緣矽（SOI）脊形波導中自由載流子壽命與非線性光學損耗的關系。

More importantly, sponsors and television carriers are free to take their business elsewhere as well.
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Without those subsidies, the feature-packed phones carriers hand out for free would cost several hundred dollars.
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