Analysis of experimental data indicates that there exist several following problems during the whole operation : first , the emission is serious and the density of hc and co smoke is very high at on and off period . second , there is oil dripping from the dripping vitta as a result of the fault of ignition system and combustion structure . the last , there might be accidents of disabled ignition resulted from the improper operation at the beginning 通过对样机的试验分析和研究表明,汽车空气燃油加热器在整个工作过程中,其排放存在以下三个问题:一、开机和关机两个阶段的排放问题严重,废气中hc和co的浓度值及烟度测量值都很高;二、因点火系统和燃烧结构的缺陷而导致开机后一段时间内有油滴从滴油管滴落;三、在点火过程中,会出现因操作不当而点火失效的现象。
点火: stir up trouble失效: lose efficacy; lose effectiv ...点火失败: fail to light点火失败脱扣装置: ignition-failure tripping device冲火失: impact loss失效: 1.(失去效力) lose efficacy; lose effectiveness; cease to be effective 这药已失效了。 the medicine no longer has any effect.2.(无效) (of a treaty, an agreement, etc.) be no longer in force; become invalid 条约的失效 voidance; voidness of treaties; 一张失效的支票 an invalid cheque; 自动失效 automatically cease to be in force; 这张证明已失效。 this certificate is invalid.; 失效保险 fail-safe; 失效检验 failure detection; 失效率 [物理学] failure rate; 失效提单 stale bill of lading; 失效支票 stale check; 失效准则 failure criteria格阳虚火失血: oversexual hemoptysis and hemorrhage点火: 1.(挑起是非) stir up trouble 这家伙就爱干煽风点火的勾当。 this guy often stirs up troubles.2.(点燃; 打火) ignite; light the fire; fire up; strike a light; priming; ignition; firing; combustion initiation; lighting-off; striking; sparking; kindle the flames 点火抽烟 strike a light for a smoke常失效: constant failure period块失效: block miss声失效: acoustic malfunction失灵,失效: out of order失效,延期: go(fall) into abeyance失效(故障): failure (fault); failure (fault)失效,崩溃: break down失效层: dead layer失效的: disabled; extinct; ineffective; out of operation; out of service; out of work; spent; stale失效点: failpoint失效级: failure level失效率: failure rate◇失效率鉴定 failure rate qualification; 失效率预计 failure rate prediction失效期: beyond-use date; exp date; expiration date; expiry date失效日: expiry date失效树: failure tree失效塔: exhaustion column失效图: versagensbild failure mode