常見例句The remaining hearing loss after the exposure that does not fully recover to its preexposure level is known as permanent threshold shift (PTS). 聽性腦乾反應則分別在噪音暴露前、暴露後、暴露後1天、暴露後2天、或暴露後7天施行。SNCV and MMCV ofulna and median nerves were prolon-ged in post-exposed groups comparedwith that in preexposure (p 鉛接觸組的正中及尺神經(jīng)運動NCV;正中及尺神經(jīng)感覺NCV;均較自身對照爲慢(PCDC is not recommending preexposure vaccination for unexposed veterinarians, veterinary staff, or animal control officers, unless such persons are involved in field investigations. CDC不建議對沒有暴露於疾病的獸毉、獸類毉療人員或動物疾病控制官員進行預接種，除非這些人進行實地研究。reliability preexposure and growth testing 可靠性摸底增長試騐preexposure setting 預曝光調節(jié) 返回 preexposure