New type PDC cutters and heavyset gage design promote longer bit life in hard and abrasive formations.
This would be especially true for the PDC Emulator role but less true for the RID master role, the Domain naming master role and the Schema master roles.
動力鑽具配合PDC鑽頭鑽井，可以大大地提高機械鑽速、降低成本、縮短鑽井週期。
鑽井一公司固井管理室副主任馬廣來研製新型壓膠塞液，推廣應用同比節約近百萬元;鑽技一公司技術員巫剛帶領團隊設計新型PDC鑽頭，節約成本萬元……
The advantage of using v-bond diamond grinding wheel to grind PDC is the higher grinding efficiency, the better uniformity of PDC size and grinding noise.
AIM: to explore the role of myeloid dendritic cells (MDC) and plasmacytoid dendritic cells (PDC) in normal pregnancy.
This paper presents a method to select PDC bits. This method USES a correlation between shear strength and drilling cost estimation per unit length.
目的：探討髓樣dc (mdc)和漿細胞淋巴樣dc (PDC)在正常妊娠中母胎免疫耐受機制中的作用。
Unplug the intermittent wipe relay from the PDC.
A new type of rotary bits was manufactured by processing the PDC product into drilling cutting buttons and then embedding them into rotary bits.
對不同噴嘴方位角時水*流對PDC鑽頭齒清洗力的影響進行了實驗研究。
研究結果表明：切削花崗巖時，受切削力及其衝擊的作用，PDC*具產生近乎平行巖石表面的磨損形式，磨損機理為機械作用引起聚晶金剛石層微觀裂紋產生並擴展而導致的金剛石顆粒的微觀破碎。
分析了鑽壓、每轉進尺、切削齒磨損和巖*對PDC鑽頭扭矩的影響，並用力平衡和能量守恆原理推導了PDC鑽頭扭矩與這些因素的關係式。
鑽頭通常屬於刮*型，裝備有PDC或者天然金剛石切削齒，但取芯鑽頭的特別之處在於鑽頭中心有一孔。
This paper describes the surface test and field application of using explosive method to dispose PDC bit fishing accident.
採用汽油和空氣作為燃料和氧化劑，進行了脈衝爆震燃燒室(PDC)與渦輪相互作用的原理*模型試驗裝置的試驗。
按設計模式，以自動化微陣列點樣儀將探針點樣於APTES PDC修飾的玻片表面。
這對於PDC鑽頭設計具有重要的理論指導意義和實際應用價值。
The overflow tank level and the speed of both the role of Chip can be changed by changing the factors such as the nozzle inlet pressure, drill gage width, nozzle diameter of the PDC bit.
搖動TCM接頭和PDC間的導線束。
從PDC上拔下間歇雨刷繼電器。
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