简介:摘要:制动系统既是关系着汽车安全的重要构件,又是影响着汽车制动效果的关键部分,且与驾驶员的操控感受有着密切关联性。因此在了解汽车制动系统的基础上,对其进行优化改善具有十分重要的应用价值。基于此,本文简要介绍液压制动和空气制动技术的优劣势和CA1125J 汽车制动系统优化对策。
简介:Jjack千斤顶,液压缸JACVjetaircontrolvalve(涡轮增压发动机)空气喷射控制阀J/Bjunctionblock(box)接线盒J/BLKjunctionblock接线盒JCjointcompound密封剂JIFjiffy停车架jiffytools全套专用工具JKjack千斤顶,液压缸JKTjacket套,壳,罩JOjoborder工作次序JPEjumper棘爪,跳线JPTjetpipetemperature排气管温度JSAEJapaneseSocietyofAutomotiveEngineering日本汽车工程学会JUNCjunction接合处,连接点,连接
简介:摘要目的探讨血清中肿瘤标志物CEA、CA199、CA242、CA72.4、CA125在晚期胃癌中的临床应用价值。方法采用生化或放免分析法检测晚期胃癌患者血清CEA、CA199、CA242、CA72.4、CA125,与对照组比较并分析结果。结果32例胃癌患者及40例为胃良性患者及40例正常人CEA、CA199、CA242、CA72.4、CA125的敏感性依次为9.7.0%、5.6%、3.2%、6.2%、3.2%;晚期胃癌患者阳性率依次为37.5%、40.1%、28.1%、59.3%、18.7%。CA72.4的敏感性和特异性最高。结论CEA、CA199、CA242、CA72.4、CA125是晚期胃癌患者辅助诊断有价值的指标。
简介:DetailedexaminationofhistoricaldataofearthquakesandfieldinvestigationsofloesslandslidecausedbytheearthquakeandtracingofactivefaultsinLanzhouareaindicatethattheYijitanputown,oneofsixtownsofJinchengcity,wasdevastatedbythe1125Lanzhouearthquake.ThecitlyisnowlocatedintheVinylonFactorysouthofHekou(RiverMouth)intheXigudistictofLanzhoucity.WedelerminedthatthesixoldtownsmentionedinhistoricalrecordslieinanareastretchingfromthesouthofXigudistricttoHekouinLanzhou.Thisisconsistentwiththedistibutionofloesslandslidescausedbytheearthquake,theextensionofHoloceneactivefaults,andthedistributionoftracesoftheseismicrupturezone.Acomprehensiveanalysisshowsthattheseismogenicstructureforthe1125LanzhouM7.0earthquakeshouldbetheXianshuigoufaultsegmentatthewesternterminationofthenorth-borderactivefaultzoneoftheMaxianshanMountainswhicharelocatedinsouthofLanzhoucitywiththedistanceofonly4km.