赛斯专业词典
防止上移的卡瓦
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卡瓦卡瓦
Kawakawa
带卡瓦的闸板式防喷器
slip ram preventer
防卡防漏
anti-sticking and leaking
防止的
Preventive
防止上顶的爪簧
hold-down finger
防止瓦斯爆炸
gas explosion prevention
可防止的
proof
avertible
可防止的事故
preventable accident
缺陷的防止
Defect prevention
危险输出的防止
prevention for dangerous output
斜坡/挡土墙的防止山泥倾泻/修补工程
category
静止卡瓦
stationary slip
带卡瓦的起下油管用工具
tubing ring with wedges
带碗形卡瓦的打捞筒
overshot with bowl
可循环泥浆的卡瓦式打捞筒
circulating slip socket
双卡瓦的
dual-grip
双卡瓦的打捞矛
bull dog double-slip spear
硬质合金牙尖的卡瓦
carbide-tipped slips
carbide-tipped slip
卡瓦卡紧面
slip area
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