冗余高压连锁切断了向环氧乙烷反应工段的供料，以及供至远低于泄放压力的环氧乙烷净化工段的所有热源。
Redundant high-pressure interlocks cut off feeds to the EO Reaction Section and all heat sources to the Ethylene Oxide Purification Section far below the relieving pressure.
针形阀是一种节流和切断特高压(与其它阀门相比)流体的小型阀门(通常为1英寸或不到1英寸)、结构简单、坚固耐用。
Needle valves are a small (usually 1 inch or less), simple, and rugged means of throttling and shutting off extremely high pressures compared with other valves.
如果电线的状况不明或是处于高压，应请专业人员切断电流或移走电线。
If the wire is of unknown or high voltage, get professional help to shut off the current or move the wire.
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