Importance is narrated that already existed the well head mechanical unit in rig, only if when Provided well head mechanical unit, obtains on safety, time saving, working saving.

叙述了改进已有钻机井口机械化装置的重要性，指出钻机上只有通过配套井口机械化装置，才能在安全、省时、省工等方面取得突破。

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Again we are looking for a way to describe the size of a humanoid that does not rely on a specific point like head bone position since it is not consistent from rig to rig.

我们再次探寻方法来描述人形的大小。但其并不依赖特定点，譬如头骨位置，因为在骨骼上它不是连续的。

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I decided to go for Rigify because it makes it easier to animate the character but the downside is that the rig becomes very complex which takes some time to wrap your head around.

因为Rigify会使为角色制作动画更加的容易，所以我当时还是决定去用了Rigify，但不利的是绑定变得变得非常复杂了，以至于需要花费时间把大把的注意力集中在这部分。

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An explosion on an offshore rig killed 11 workers and ruptured a deep-sea well head, which took 84 days to seal.

BBC: BP appeal over 'absurd' Gulf oil spill payouts

As the head of the company, Hayward became a lightning rod for public and political anger after the drill rig operated by BP exploded in the Gulf of Mexico in April.

CNN: BP's Hayward: Oil spill wasn't because of cost-cutting

Earlier this year, the head of the Asian football associations warned that powerful illegal betting syndicates in the region could attempt to rig World Cup finals games by bribing players or referees.

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