通风道

To obtain the flow field characteristics of a new type ventilation system used in a certain air-cooled turbo-generator rotor, the cooling duct model of half axis length in one slot was established.

某空冷汽轮发电机转子冷却风道采用了新型通风方式。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

This mean that the synthetic pyrethroid powder could prevent ticks at field to climb up dog's body availably. Canine rooms and canine playground were the location whitch hiding a great deal of canine ticks. 2% dichlorvos liquor was used to scatter at the wall, floor of canine room and the canine bed,then the door and window were closed for fuming. The door and window were opened after 4 hours and the room were washed downright.

犬舍灭蜱用浓度为2%的敌敌畏溶液喷洒犬舍的墙壁、地面、和犬床，然后关严犬舍门窗进行熏杀，4h后打开犬舍门窗进行通风排气，并用清水彻底冲洗犬舍，最后在犬舍每面墙约与犬身同高的部分和墙与墙、墙与地面的交界处用合成除虫菊药粉笔画上数道连续并排的粉线。

Today the solder joint is widely adopted, as evidenced by the majority of cities and states that have written codes to include copper tube and solder joints as desirable for general plumbing, water lines, vent, stack, waste and drain lines, as well as other uses in industry.

如今，焊料连接已经被广泛采用，证据就是美国大多数城市和州的正式规程中都将铜管道和焊料连接作为一般管件、水管线、通风、烟道、废水和排水管道以及其他工业用途的理想连接方式。

In the rotor winding ventilation system with sub-slot, the configuration parameters of sub slot, the distribution of winding's cooling ducts, and the diameter of slot wedge directly affect the flow characteristics of coolant in cooling ducts.

在转子副槽通风冷却系统中，副槽结构、径向风道分布、槽楔出风口直径等参数，直接影响转子风道冷却介质流动特性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。