最低使用空層 的英文怎麼說

中文拼音 [zuìdīshǐyòngkōngcéng]
最低使用空層 英文
minimum usable flight level
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 使 : Ⅰ動詞1 （派遣; 支使） send; tell sb to do sth : 使人去打聽消息 send sb to make inquiries2 （用; ...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  • 空層 : dead level
  1. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  2. He explains why microwaves cook fish well and meat poorly ( they heat only water molecules, and those to just below boiling : in other words, they poach, producing succulent fish but bland meat ) ; why one should dress a salad just before serving ( oil penetrates the thin waxy cuticle that coats vegetables, driving out the air that refracts light and gives vegetables their colour ) ; why potatoes are the perfect food to deep - fry ( a wealth of starch and sugar on the surface ) ; and why the easiest way to salvage curdled mayonnaise is to wait until the oil separates completely, then just pour it back in, whisking constantly

    他解釋了很多廚房內的問題，為什麼用微波爐烹飪出的魚味鮮色美，而做出的肉卻難以下咽（微波爐只對水分子有加熱的作用，而加熱的程度僅低於沸點：換言之，這是一種用熱水煮的過程，所以烹飪出的魚會多汁，而肉卻味道一般） ；為什麼僅在上菜之前的那一刻才給沙拉添加拌料（因為油會浸入保護蔬菜的薄弱表層，並迫使蔬菜內含有的對光線有折射作用的空氣，這樣蔬菜就具有了最本質的顏色） ；土豆為什麼通過油炸才味道最佳（因為油炸過程中，大量的澱粉與糖份會浮出到土豆的表面） ；以及為什麼給蛋黃醬解凍的最簡便的方法是先把醬倒出來，等內含的油完全分離之後，然後把醬倒回瓶子里，再不停地攪拌。
  3. Mega - frame is composed of mega - frame which is the main structure and floor - frame which is the minor. mega - frame has characteristics of great rigidity, superior property as a whole, clear - cut transmitting mechanism, flexible using space, economical building materials, low prices and high speed of construction and so on. because of its efficiency, flexibility and economization, mega - frame has become one of the most promising structure systems for tall buildings

    巨型框架結構由作為主結構的巨型框架和作為次結構的樓面框架構成，它具有側向剛度大，整體性能好，傳力明確，使用空間靈活，節約材料，降低造價，施工速度快等特點，是一種集高效性、靈活性和經濟性為一體的新型高層建築結構體系，因而成為適合建造高層與超高層建築的最有前途的結構形式之一。
  4. The action that weak cold air penetrated into the tropical cyclone made the low pressure become vortex potential instability, and finally turned into kinetic energy. the results were that the center pressure of low became lower, the wind velocity around the cyclone was stronger and the precipitation became more

    冷空氣在中低層的滲透主要使大氣斜壓作用加強，使不穩定能量的積聚並最終釋放；還造成臺風渦旋位勢不穩定，使熱帶氣旋中心氣壓降低，周圍風力加大，因而產生更大的降水。
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