air barrier
常见例句
- Inflatable packaging uses air pressure to secure and hold products in place inside the shipping container and provides an air barrier of cushioning.
充气包装利用气压来牢固及维持货件于托运容器内的位置，并提供一个气垫。 - Theseresults suggested that the concentration curve was determined mainly by the THOtransport across blood-air barrier in the primary pulmonary circulation.
结果说明呼出气氚水浓度曲线是氚水经肺首次循环时透过血-气屏障的转移所产生。 - Arithmetic mean thickness and harmonic mean thickness of blood-air barrier thickened with age increasing, and there were remarkable difference between neighboring two groups(P0.05).
黄牛的气-血屏障的算术平均厚度和调和平均厚度均随年龄增加而不断增厚，且相邻两个组之间差异显著（P〈0.05）。 - Mulch forms a barrier between the soil and the air.
- And in 2007 a survey of around 200 space companies by the Air Force Research Laboratory cited export controls as the highest barrier to foreign markets.
ECONOMIST: Space technology - In addition, EPA's and USDA's relevant authorities cover a range of natural resources and their supporting ecosystems, including waters, sediments, barrier islands, wetlands, soils, land management, air resources, and drinking water supplies.
WHITEHOUSE: Executive Order -- Gulf Coast Ecosystem Restoration - Preventing this process using an iron-free, corrosion-resistant alloy barrier is particularly important in a city like Boston, where the air is damp and laden with salt water.
ENGADGET: Engineering a better bicycle with DBC City Bike Design Alt 返回 air barrier