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The influence of topically application of verapamil cream on the formation of hypertrophic scar in the injured rabbit ears;

维拉帕米霜对兔耳增生性瘢痕作用的定量研究

The defrost timer of Shangling refrigerator works by means of mechanical timing-control.

早期生产的上菱牌电冰箱,其化霜定时器多采用机械定时控制,使用至今,机械磨损或内电动机异常,均会造成定时不准或不定时。