气压式高度表测量气压是参照海平面的，透过一连串的真空膜盒、齿轮和弹簧来移动刻度盘上的指针。
The mechanical pressure altimeter measures atmospheric pressure relative to sea level through a series of bellows, gears, and springs, which move Pointers on a dial.
目的观察聚乳酸防黏连膜(PLAM)对椎板切除术后预防硬膜外黏连的临床效果。
Objective to investigate the clinical efficacy of poly lactic acid membrane (PLAM) in the prevention of epidural adhesion after lumbar laminectomy.
根据解剖结果，设计了带膝降血管蒂股骨内侧髁骨（膜）瓣移位修复股骨中下段骨不连或骨缺损。
According to the results the femoral osteoperiosteal flap pedicled with the descending genicular vessels was designed for repairing the defect of the middle distal femur.
临床表征除了瞳孔偏向，葡萄膜外翻，周边连黏，青光眼之外还具有特殊的色素性节结在虹彩的表面上。
Clinical manifestation with unilateral glaucoma, corectopia, ectropion uvea, peripheral anterior synechiae (pas) and characterized by pigmented nodules on the iris.
该机用于生产连卷的高、低密度聚乙烯膜袋，适用于超市商场购物及居家使用。
This machine is applied to making drum-linkage LDPE and HDPE bags that are suitable for shopping in the supermarkets and household purpose.
该机用于生产连卷的高、低密度聚乙烯膜袋，适用于超市商场购物及居家使用。
This machine is applied to making drum-linkage LDPE and HDPE bags that are suitable for shopping in the supermarkets and household purpose.
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