Traditionally, the way to measure the needle displacement of oil injector is of contact pattern.
传统的柴油机喷油器针阀升程测量方式多为接触式。
Pine needle contains its own fragrant essential oil, fresh and pleasant, calming nervous.
松针枕含有松针自身特有的芳香精油，清新宜人，安神镇静。
Pine needle contains its own fragrant essential oil, fresh and pleasant, calming nervous.
松针枕含有松针自身特有的芳香精油，清新宜人，安神镇静。
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