Snub lines for the rig tongs must be inspected at regular intervals and be in good working condition.

必须定期检查大钳尾绳，使其处于良好的备用状态。

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Suspension lines, pull lines, backup lines and snub lines should be inspected weekly and before every job for specifications (job load ratings), wear limits, damage, or improper installation.

悬吊绳、拉力绳、安全绳、固定绳应该每周或每次使用前检查一次，规格(额定工作负荷)、磨损限度、损坏程度或安装。

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PetTravel.com notes that KLM recently banned four breeds of snub-nosed dogs in the cargo hold, and Delta Air Lines is restricting all pets from the cargo hold of its B767s.

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