upper density limit 中文意思是什麼

upper density limit 解釋
密度上限
  • upper : adj 1 （更）上面的，上方的，上部的；較高的；上級的；（議會）上院的；（衣服）穿在外面的。2 上流的...
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • limit : n. 1. 界限，界線；邊界。2. 極限，限度；限制。3. 〈pl. 〉范圍，范域。4. 限價；限額；賭注限額；獵物限額。vt. 1. 限制，限定。2. 減少。adj. -able
  1. Liberation of hydrogen gas would be increased rapidly and sic particles on the surface might be dispersed if the current density exceed the upper limit. furthermore, nickelous hydroxide would be deposited because the ph of plating solution nearby the surface rapidly increased. all of above might result in coating deterioration

    若電流密度過大，超過所允許的上限值，會析出大量的氫氣，可能沖散表面覆蓋的sic微粒，而且易使磨頭表面鍍液ph值急劇上升而形成氫氧化鎳沉澱，導致鍍層質量惡化。
  2. Because of the upper limit of the nuclear density, which prevents the core to compress too far, the collapsing inner core will bounce back outwards. this out - going inner core will collide with the in - coming outer core, which is collapsing rapidly. this collision will send off shock waves and create heavy elements, like uranium

    由於原子核的天然密度會成為巨大的阻力，防止核心進一步收縮，這時核心會猛烈反彈，以極高速塌縮的核心外殼會和反彈中的核心碰撞，產生強烈的沖擊波，同時產生出像鈾等比鐵更重的元素，並把恆星外殼炸毀，這便是
  3. At the delay time when the area on the anode surface bombarded by electrons expands to a maximum field, the upper limit of ion beam current output is reached. the ion beam parameters are an accelerating voltage of 220 kv, an ion current density of 350 a / cm2 with beam pulse width of 70 ns and with composition of 30 % proton and 70 % carbon ions

    在電子流對陽極轟擊面積達到最大所對應的延遲時間，獲得了最大離子束流密度輸出，離子束參數為： 220kv ， 350a cm ~ 2 ， 70ns ，成分約為30 h離子和70 c離子，離子束流密度的波動同樣可控制在20 。
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