versus 四级六级考研雅思

1.Comparison interventions included non-iodised salt, iodised water, iodised oil, iodation with potassium iodide versus potassium iodate.

作对照的干预措施包括无食盐、化、，以及酸钾与化钾作对照。

2.Another critical factor when designing tricycle gear is to properly balance the load carried by the main gear versus the nosewheel.

前三点起落架的另一个不利因,设计时需要精确的分配主轮与前轮的负荷.

3.Objective. To evaluate the efficacy of caudal epidural injections (CEI) containing steroid versus nonsteroid preparations when treating patients suffering from low back pain (LBP) and sciatica.

评价并比骶管内硬膜外注射激和非激治疗腰痛和坐骨神经痛的疗效。