柜内线缆在走道内应顺直排放整齐,拐弯均匀、圆滑、平直,外径不大于()m的各种线缆弯曲率半径不小于()m,外径大于()m的线缆弯曲率半径不小于其外径的()()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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