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radioelement 放射(性)元素

radio-equipped vehicle `配備無線電設備

railroad fire [消]鐵路（沿線）火災

railroad fire signal 鐵路（沿線）火警信號

rake 1、[消]（用水槍射流）掃描（火） 2、[消]火耙

random event 隨機事件

range fire [消]牧區火災，草原火災

rate of residual extinguishing medium 噴射剩余率

rated apparent power on valve side 額定閥側視在功率

rated current on valve side 額定閥側電流

rated voltage on valve side 額定閥側電壓

reaction to fire 對火反應

recconnaissance fire vehicle 勘察消防車

reconnaissance fire vehicle 勘察消防車

recrystal 再結晶

region responsibility system of plant maintenance 設備區域維修負責制

regulation of fore period management of plant 設備前期管理規定

relative density 相對密度

releasing test for fixed foam fire-extinguishing systems 泡沫滅火系統噴射試驗

releasing test for fixed pressure water-spraying fire-extinguishing systems 水霧滅火系統噴射試驗

reliability theory 設備的可靠性與可靠度

repair [設備]修理

repair cycle 修理周期

residual carbonized substance after fire 火場殘留炭化物

residual magnetism in conducting wire short circuit caused by fire burning 火燒導線短路剩磁

residual value 殘值

response to fire call 受理火警

reverse circulation valve 反循環閥

rigid piston valve 固定式汽閥

riot gun 防暴槍

rnterval between inspections 檢查間隔期

roof resisting to external fire exposure 防火屋面

roof screen 悶頂隔板

roof smoke screen 屋頂擋煙隔板

roof vent 屋頂通風

rotary pump 旋轉真空泵

rotary valve 球閥

running pump time 開泵時間

rabbit [核]（放射性樣品）兔式速移器〈鋁或塑料制的小圓柱體，用氣壓通過輸送設備移動〉

raceway 電纜管道

rack 擱物架

rack space 儲存架區

rack storage sprinkler [消]高架倉庫灑水噴頭〈自動噴頭滅火系統的〉