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- Negative Air Available 得不到飞机
- A negative air flow environment with HEPA filtration is recommended in confined attics and crawl spaces to ensure the operator’s safety. 由于我们产品的选择范围广泛，我们能够为您的应用和预算推荐最佳配置，而不会牺牲质量。
- The negative air ion concentration in different communities were as follows: lower greenbelt>woodland>weed land>bald land>concrete piazza. 不同植被类型由高到低依次为：花卉绿地＞林地＞宜林荒草地＞裸露地＞水泥广场；
- The machining envelope is kept under negative air pressure, with chips and oil mist pulled out in an airstream, then through a centrifuge and filter system. 机器密封环境是出于负起呀下，碎片和永无用气流抽出，随后离心过滤。
- electrically generated negative air ions (ENIs) 空气负离子
- The outface is painted with fireproofing lacquer, can isolate air availably, reach the effect of isolated hot, The inboard face prevents thermal transmission. 外表面喷有防火漆,能有效地隔绝空气,达到隔热效果;内侧垫加硅酸铝岩棉和防火板,阻止热量的传导;
- 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。
- Fixing and Negative Air Ion Effect on Silk by Sol-Gel Process 溶胶凝胶法对真丝绸的固色及负离子效应
- Methodological Study on Measurement of Negative Air Ion 空气负离子剂量测量方法的探讨
- 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 answer to my request was in the negative. 对我的请求的答复是否定的。
- 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。
- The air held a foretaste of a storm. 天气有要括大风的迹象。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- The air was reeking with the smell of tobacco. 空气中弥漫着烟草的气味。
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- A walk in the fresh air will pep me up. 我在空气新鲜的地方散步就感到精神饱满。
- Their criticism was not negative. 他们的批评并不是负面的。
- He served one month with the Air Army in Kuwait. 他在科威特的空军里服役1个月。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
