normal bend 中文意思是什麼
normal bend
解釋
垂直彎管-
After being improved, the gear surface contact fatigue strength obeys weibull distribution and stress obeys normal distribution, the gear bottom bend fatigue strength and stress obey logarithm normal distribution, according to the relation of average safe rate and reliability, then the gear strength reliability design and check equations can be deduced
將齒面接觸疲勞強度按威布爾分佈、應力按正態分佈處理，將齒根彎曲疲勞強度和應力均按對數正態分佈處理，再根據平均安全系數和可靠度之間的關系，推導出了齒輪強度可靠性設計和校核公式。 -
Ordinary materials such as glass lenses bend light so that the refracted ray is on the opposite side of the “ normal, ” the imaginary line perpendicular to the surface of the medium
玻璃鏡片等一般材料能使光線偏折，折射后的光線位於法線（垂直於介質表面的假想線）的另一側。 -
With the development of high - rise building, the normal strength concrete and high - strength concrete are applied more and more extensively. it is necessary to study much more behaviors of combined - force member under gone bend, axial press, shear and torsion
普通混凝土及高強混凝土隨著高層建築的發展得到廣泛的應用，有必要對普通混凝土和高強混凝土承受彎壓剪扭復合受力構件的結構性能做進一步研究。 -
This means that the dielectric property changes with height and allows a slight increase in the speed of a radio wave as we move upwards through the atmosphere. this in turn means that if a radio wave moves away from the earth at an angle less than 90 degrees, then the upper part of the wave travels faster than the lower part. therefore even under normal conditions this can in effect bend, or refract, the wave back down to earth
其中一種顯著的現象是：在一定的氣象條件下，在大氣邊界層尤其是在近地層中傳播的電磁波，受大氣折射的影響，其傳播軌跡彎向地面，當曲率超過地球表面曲率時，電磁波會部分地被陷獲在一定厚度的大氣薄層內，就好像電磁波在金屬波導管中傳播一樣，稱為大氣波導傳播，形成波導傳播的大氣薄層稱為大氣波導層。
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