The utility model relates to a novel shaft head seal.
本实用新型涉及一种新式轴头密封。
The dark head of a seal bobbed up a few yards away.
在几码远处一只海豹的黑脑袋猛地钻出水面。
Analyse and design mechanism, seal structure, shape of shovel head and length of tool chamber.
对水下液压冲击铲的机械本体、密封结构、铲头形状、工具腔长度等进行了设计、分析。
The pump head, pump shell, seal chamber parts can with insulation jacket.
泵头部、泵壳体、密封腔部分均可以带保温夹套。
The seal head adopts a conic piston or a ball to meet the need.
根据需要，密封头采用锥形活塞或球体。
The seal head adopts a conic piston or a ball to meet the need.
根据需要，密封头采用锥形活塞或球体。
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