您要查找的是不是：
- train air signal valve 列车号态气阀
- train air signal stop cock 列车空气信号遮断塞门
- The data Acquisition and wireless transportation system of the rear air pressure based on GPRS network communication is introduced,which is used on train air testing in railway station. 主要介绍一种基于GPRS网络通信的、用于铁路站场列车试风时尾部风压数据采集、无线传输的系统。
- an academy for train air force officers. 培养空军军官的专科学校。
- Pollution Survey of Carbonyl Compounds in Train Air 列车车厢内醛酮化合物的污染状况
- The train must stop when the signal's red. 信号机是红色时,火车必须停驶。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- Non-commissioned aircrew fulfil roles such as Air Loadmasters (ALM), Air Signallers, Air Electronics Operators (AEO), etc, although they are now all known as Weapon Systems Operators. 所有飞行员并且武器系统官员(以前以著名导航员)在皇家空军是被委任的官员。
- All the seat-covers on the train had been torn by vandals. 列车上所有的椅套都被蓄意破坏者撕破了。
- This series machine type is used for air spring forming to form various shapes, and for preforming of different specifications of automobiles, trains air spring before vulcanization. 此系列机型用于空气弹簧成型用，成型各种形状，不同规格汽车、火车空气弹簧硫化前的预成型。
- The train is attacked by guerilla. 火车受到游击队的袭击。
- The lack of air in the room make everyone sniffle. 屋子里空气缺乏，使得每个人都频频吸气。
- The boys were spitting out of the train window. 那些男孩子向火车窗外吐口水。
- Mary would rather travel by train than by plane. 玛丽宁可乘火车而不愿乘飞机旅行。
- During the intermission, let's go out for some fresh air. 幕间休息时，我们出去呼吸呼吸新鲜空气吧。
- I haven't got a clue about the train schedule. 我一点都不知道这个列车时刻表。
- The air held a foretaste of a storm. 天气有要括大风的迹象。
- The children are playing with a toy train. 孩子们正在玩一列玩具火车。
