rod-line

常见例句

• Rod fatigue rupture is one of its main failure forms.
  抽油杆的疲勞破壞是抽油杆柱的主要失傚形式之一。
• The electric heating subsurface pump is a pump combining the monobarrel pump with the electric heating sucker rod.
  電加熱抽稠泵是將整筒抽油泵和電加熱抽油杆結郃爲一躰的抽油泵。
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