secondary tin再生锡secondaryadj.次要的；从属的；中等教育的n.副手；次要位置secondary fracture继发性骨折secondary inoculum二级免疫功能secondary isochron二次等时线secondary additive[化] 辅助配合剂secondary reserves二次采油储量secondary disaster次生灾害secondary cementum细胞性牙骨质secondary meridian副子午线secondary branchia次生鳃(动)secondary entoderm后成内胚层

1. The component gate opens at the beginning of the peak.
   在波峰开始时，门电路打开。
2. The commercial EP machines also plot changes in latency between serial EP studies in order to detect trends in peak latency.
   为检测波峰潜伏期，可在连续波峰之间标识出潜伏期变化技术应用到商用诱发电位仪上。