粗大的内捧猛烈进出在线视频-粗大猛烈进-粗大挺进朋友未婚妻-粗长巨龙挤进美妇-打屁股gay-大菠萝福建导航app

      三綜合試驗(yàn)箱結(jié)合溫度、濕度、振動(dòng)功能于一體主要為航天、航空、石油、化工、電子、通訊等科研及生產(chǎn)單位提供溫濕度變化環(huán)境，同時(shí)可在試驗(yàn)箱內(nèi)將電振動(dòng)應(yīng)力按規(guī)定的周期施加到試品上，供用戶對(duì)整機(jī)（或部件）、電器、儀器、材料等作溫濕度、振動(dòng)綜合應(yīng)力篩選試驗(yàn)，以便考核試品的適應(yīng)性或?qū)υ嚻返男袨樽鞒鲈u(píng)價(jià)。

      It combined with function of temperature, humidity, vibration, mainly made for the aerospace, aviation, petroleum, chemical, electronics, communications and other scientific research institute and production units with environments of temperature and humidity changes,.At the same time, electric vibration stress in test box in a specified cycle applied to the sample, for users of the machine (or parts), electric appliances, instruments, materials such as temperature and humidity, vibration stress screening test, so that the inspection experiment of adaptive or for making evaluation of the behavior of the sample.