Contents of various species of soil Cd increased with increasing external Cd concentrations.

在单一镉污染土壤中，土壤中各形态镉含量均随着外源镉浓度的增加而增加。

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If you're looking for a CD-RW drive to share with others, check out the external version of this drive, HP's CD-Writer Plus 7200e.

CNN: IDG.net - Recordable and rewritable CD drives: Permanent, portable storage

External time-code control via turntables and CD decks will be enabled through a future software upgrade.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter

Like its predecessors, the MAS 102 offers CD playbacks, FM radio, and a host of analog and digital inputs to playback music from external devices.

ENGADGET: Harman Kardon's MAS 102 stereo has a petite profile, luxury looks and matching $999 price tag