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Ink supply by pneumatic diaphragm pump.
气动隔膜泵供墨。
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When repairing the pump unit, install the plug attached to the service part to prevent ink from spilling.
当修理泵部件时，要安装泵的附件，以防止墨水泄漏。
BioMedicines of Emeryville, Calif. is testing its Omega interferon with a Duros pump, a titanium device that looks like the ink tube of a Bic pen.
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