focal pressure 中文意思是什麼
focal pressure
解釋
焦點壓力-
If the focal point of the len shifts around the surface of the sample, the mass ablation, the temperature of the plasma and the spectral intensity appear asymmetric and their maximum occur at the location which is about 0. 4mm under the surface of the sample. ( 2 ) to the plasma of the aluminum alloy sample, when the operating voltage is 1600v, the height from the observed location of the plasma to the surface of the sample is 2mm and the argon pressure is 660 torr, the spectral intensity have the maximum values
（ 2 ）對于標準鋁樣品，在激光器工作電壓為1600v 、等離子體觀測高度為2mm 、氬氣壓力為660乇時，其譜線強度最強；以al 308 . 22nm 、 al 309 . 27nm兩條譜線為分析線，發現隨著環境氣壓的增大，譜線自吸效應明顯增強，當環境氣壓達到600 - 700乇時，譜線幾乎產生自蝕。 -
Several diverticula are seen along the length of the descending colon. focal weaknesses in the bowel wall and increased lumenal pressure contribute to the formation of diverticula
沿著降結腸有幾個憩室。腸壁的薄弱部位和腔內壓力增加，促進了腸憩室的形成。 -
The plasma density scale length given by combination of ponder - motive force and thermal pressure is suitable for vh. considering the spatial intensity distribution in focal spot, the ra may give some contribution in some place
X射線是各向同性的， x射線產額隨入射激光強度的降低而減小，當強度小於10 ~ （ 15 ） w cm ~ 2時，不再有硬x射線產生。
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