British Rail had to post a signalman at the entrance to the tunnel.英国铁路公司不得不在隧道入口设置了一名信号员。Signalman should coordinate to ensure Safe Lifting Operation with proper signals.信号员必须确保使用正确的信号,保证起重机动作安全.British Rail had to post...
British Rail had to post a signalman at the entrance to the tunnel.英国铁路公司不得不在隧道入口设置了一名信号员。Signalman should coordinate to ensure Safe Lifting Operation with proper signals.信号员必须确保使用正确的信号,保证起重机动作安全.The signalman's sig...
深深浅浅的各种木槿色、丁香色、熏衣草色和紫色都是流行色。All shades of mauve, lilac, lavender and purple were fashionable.丁香树倚着边墙生长。Lilacs grew against the side wall.他在钮孔上面插了一小枝丁香.He wore a sprig of lilac in his button hole....
牲畜的生长或其产品的生产量是农学家最关心的问题.Animal growth or product yield is the ultimate concern of the agriculturalist.牲畜的分布,可采用牛 、 羊 、 山羊 、 家禽等图形表示.Distribution of livestock can be shown better by symbols representing cattle, sheep, goa...