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- The heavyset gage design provides for long runs on sreerable systems ghrough hard and abrasive formations. 高強度的規徑設計使其在含一定研磨性的硬地層中導向鑽進可獲得長壽命。
- New type PDC cutters and heavyset gage design promote longer bit life in hard and abrasive formations. 新型切削齒及高密度保徑布齒提高鑽頭在硬研磨性地層中的使用壽命.
- Spiral gage improves bit guiding ability, extends bit life through abrasive formations and hard interbedded layers. 螺旋保徑在研磨性地層及夾層中鑽進可改善鑽頭的導向性;延長鑽頭壽命.
- Cubic borazon has been developed as an ideal hard abrasive due to its high hardness, high thermal stability and high chemical inertia properties. 立方氮化硼因其具有「三高」特性,而成為一種理想的硬磨料得以發展。
- Results show that martensitic ductile iron under high stress two-dody abrasion with soft abrasive is worn out by fatigue mechanism and with hard abrasive, the cutting mechanism. 結果表明:在軟磨料作用下的高應力兩體磨損中,馬氏體球鐵以疲勞機制破壞,硬磨料作用下以切削機制破壞;
- Deep blade configuration makes possible high rates of ROP in soft to medium formations and effective cooling in harder,more abrasive formations. 深刀翼布置使其在軟至中硬地層中獲得高鑽速，在硬且有一定研磨性的地層中有效地冷卻鑽頭。
- Deep blade configuration makes it possible to obtain high ROP in soft to medium formations and effective cooling in harder and more abrasive formations. 深刀翼使其可能在鑽軟至中硬地層中獲得高鑽速;並在有一定研磨性的硬地層中有效地冷卻鑽頭.
- It is hard to sleep without a cooler in this room. 沒有空氣調節器，在這間屋裡很難入睡。
- The attack is to wipe out data, to delete flies, or to format the hard disk. 常見的攻擊方式是消除數據、刪除文件或者格式化硬碟。
- John felt it hard to rig out his family. 約翰感到難以為一家大小置備衣著。
- The hard core in the party make all the decisions. 這個黨的核心成員決定一切。
- Hard copy is computer output on paper, printing or graphics. 硬拷貝是出現在紙上、印刷上或圖表上的電腦輸出。
- I scrubbed hard at the stain to see if I could get it off. 我使勁擦這個污跡，看能不能將它去掉。
- It's natural to slack2 off towards the end of a hard day's work. 一天緊張工作快結束的時候有些放鬆是自然的。
- He pushed hard on the brake pedal to avoid a collision. 他使勁踩下煞車踏板以避免撞車。
- One can not learn a language well unless one works hard. 學好一種語言非下苦功不可。
- Let's collect the sap before its consolidation into a hard mass. 讓我們在樹液堅固成團之前將之收集起來。
- He owes his opulence to work hard. 他的財富乃辛勤工作得來。
- She was trying hard to disgorge a fish bone. 她拚命想把魚刺吐出來。
