pdcs 中文意思是什麼

pdcs 解釋
配電參數
  1. Presently pdcs are usually manufactured by hp - ht means. domestic pdcs are inferior to foreign products. domestic pdcs exhibit lower impact resistance, are more susceptible to delaminating, chipping and breakage

    國內聚晶金剛石復合片的性能與國外先進產品有較大差距，主要表現在抗沖擊性能較低、易分層、崩刃、破裂等方面。
  2. Ii. the direct diamond - diamond bonding between granules in domestic pdcs are poor. accordingly more catalyst metal are left over, this weaken the strength of the whole pdc

    國內聚晶金剛石層中晶粒之間直接連接的共價健（ c - c健）比例少，催化劑金屬含量過高，導致宏觀強度低，應採取如下措施： 1
  3. 2. reduce the content of catalyst metal to prevent it from blocking the direct bonding of diamond granules and improve the thermal stability of pdcs

    減少催化劑金屬加入量以避免其隔斷金剛石晶粒之間的直接健合，同時提高聚晶的熱穩定性。
  4. Domestic pdcs contain more impurities such as mo, fe and cr. they should be controlled by : 1. improve the purification of diamond powder

    國內聚晶金剛石-硬質合金復合片雜質含量偏高，含有mo 、 fe 、 cr等雜質，需要採取綜合措施降低雜質含量，包括1
  5. Based on these work, some suggestions are presented to improve the performance of domestic pdcs

    根據這些工作提出了一些改進國內聚晶金剛石-硬質合金復合片性能的設想。
  6. In the present research, scanning electron microscope ( sem ), laser raman spectroscopy ( lrs ), x - ray photoelectron spectroscopy ( xrs ), x - ray diffraction ( xrd ) and electron probe micro analysis ( epma ) were utilized to investigate the difference in micro - structure and elements distribution between domestic and foreign pdcs. combined with analysis on current manufacturing process, the mechanism for the difference was discussed. scanning electron microscope ( sem ), laser granularity analysis, atom emission spectroscopy ( aes ) and plasma emission spectroscopy ( icpaes ) are also utilized to investigate the grain shape and impurities of key material - diamond power

    本課題採用掃描電鏡、拉曼光譜、光電子能譜、 x -射線衍射分析、電子探針等方法分析了國內外聚晶金剛石-硬質合金復合片在微觀組織結構、元素成分分佈方面的差異，結合對現有燒結工藝的分析，研討了造成這些差異的機理；採用掃描電子顯微鏡、激光粒度分析、原子發射光譜、等離子發射光譜等方法對關鍵原材料-金剛石微粉的晶形、雜質含量進行了比較分析測試。
  7. Conclusions : in hcv - infected liver the combination of enhanced mdc function and a reduced number of pdcs may contribute to viral persistence in the face of persistent inflammation

    結論：在hcv感染的肝臟中，增強的髓樣樹狀突細胞功能和降低的漿細胞樣樹狀突細胞的數量的聯合可能促成在持久炎癥的面前的病毒持續感染。
  8. Iv. measures should be taken to lower the residual stress in pdcs by improving the structure of the interface between diamond and substrate

    採取措施降低pdc內部的殘余應力。改進金剛石-硬質合金界面結構。
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