... 你看铁路运输设备既有线测量 survey of existing line;survey of existing railway 道床作业 ballast operation 输导砂 sediment transport ...
基于36个网页-相关网页
gas ballast operation 气体镇流工作
clean ballast tank operation manual 清洁压载舱操作手册
continual operation ballast 连续工作镇流器
intermittent operation ballast 间歇工作镇流器
The operation for hauling bulk ballast will need two access points along a segment at approximately2.5mile intervals.
搬运大批的道碴需要沿一个区段的两个进入点，间隔距离约为2。5英里。
By controlling ship floating state, the rate and ability of loading or discharging ballast water can be enhanced to ensure the adaptation of ballast water to cargo operation during the cargo loading.
通过控制船舶的浮态提高船舶压载水的速率及排放能力，保证货物装载过程中压载水与货物操作相适应。
The features of IR21592 dimming ballast controller is introduced. The operation principle and design of 36w fluorescent lamp electronic ballast circuit based on IR21592 are described in detail.
介绍IR 21592型调光镇流器控制器的特点，详细阐述基于IR 21592的36 W荧光灯调光电子镇流器电路的工作原理与设计。
应用推荐