warning board的意思|示意

In February 2016, the US National Transportation Safety Board issued a warning about lithium batteries in aeroplane cargo, describing them as "a fire and explosion ignition source".

2016年2月，美国国家运输安全委员会发布了一条关于飞机货物中锂离子电池的警告，将其描述为“引发火灾和爆炸的来源”。

The safety identification marks for fuel gas pipeline facilities, such as mark stake, test stake, mile stake, warning board, etc. ;

标志桩、测试桩、里程桩、警示牌等燃气管道设施安全识别标志；

Mr Streiff called the decision by the board of Europe's second-biggest carmaker to get rid of him without warning "incomprehensible".

斯特·雷夫称这家欧洲第二大汽车制造商的董事会未提出警告做出赶他下台的决定“让人无法理解”。