久航高度 的英文怎麼說
中文拼音 [jiǔhánggāodù]
久航高度
英文
altitude for maximum endurance-
Directionally solidified refractory metal matrix eutectic in - suit composites possess excellent mechanical and physical properties such as low density, high enduring temperatures, good room - temperature fracture - toughness and high elevated - temperature strength, therefore are expected to be used as a new type of ultra - high temperature structural materials
定向凝固難熔金屬基共晶自生復合材料由於具有密度低、承溫能力高、室溫斷裂韌性好、高溫強度高和高溫持久壽命長等性能優勢,有望成為新一代航空發動機葉片用超高溫結構材料。On the advice of the director - general of civil aviation, the secretary for housing, planning and lands may by order grant permanent exemption from the airport height restrictions subject to terms and conditions required for or related to the safety of aircraft
房屋及規劃地政局局長在諮詢民航處處長后,可藉命令批出永久性的機場高度管制豁免。但這類豁免須受規劃地政局就飛機安全所需或與飛機安全有關而施加的條款及條件所限制。
分享友人