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《智能设备交接验收规范第1部分:一次设备状态监测》规定,一次设备...
Thursday, September 15, 2022
Thursday, September 15, 2022
硬质塑料管在套接或插接时,其插入深度宜为管子内径的()倍...
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Monday, September 12, 2022
《继电保护和安全自动装置技术规程》规定,接于并联电抗器中性点的接...
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Thursday, September 15, 2022
购买剧毒药品时,必须()。A、向单位保卫部门申请并批准备案B、经过公安局审批C、通过正常渠道在指定的化学危险品商店购买...
Sunday, October 9, 2022
在反应堆物理实验室里是否用三氟化硼正比计数管和氦-3正比计数管来...
Wednesday, September 14, 2022
辐射防护标准一般可分为()、()、()和()四个级别。...
Wednesday, September 14, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
结核分枝杆菌,按危害程度分类,属于第几类病原微生物?()...
Monday, September 12, 2022
《智能变电站智能终端技术规范》规定,智能终端()的单双网可灵活设...
Thursday, September 15, 2022
直径为150mm以下冷拔铝合金管母线,其允许单位长度内的弯曲度为...
Wednesday, September 14, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
Monday, September 12, 2022
为了确保动物实验的正常开展,应严格控制无关人员、昆虫及野生动物、...
Thursday, September 15, 2022