捐赠者名册申请提供石油的存款计量辊报告。
A donor roll is provided for applying oil deposited thereon by the metering roll.
一到计量，计量辊硅油计量叶片结构有两种操作模式。
A metering blade structure for metering silicone oil onto the metering roll has two modes of operation.
一到计量，计量辊硅油计量叶片结构有两种操作模式。
A metering blade structure for metering silicone oil onto the metering roll has two modes of operation.
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