发电厂、变电站发生母线失电时应该如何处置？
在基因组学中，被称为第三代分子遗传标记的是（） ["表达顺序标签（EST）","限制性片段长度多态性（RFLP）","串联重复序列标记（TRS）","单核苷酸多态性（SNP）"]
In securing deck loads for an ocean tow，drill pipe should be（）. ["galvanized to protect against corrosion","held in place with heavy materials such as spare pendant wire","limited to no more than five courses high","provided with bulwarks at both ends of their bay"]
简述清纱目的。
In a shell-and-tube type hydraulic fluid cooler, the amount of heat transferred from the hydraulic fluid to the cooling water depends upon（） ["the temperature of the hydraulic fluid","the flow rate of the hydraulic fluid","the temperature of the cooling water","all of the above"]
变电站主变过载时应如何消除过载？
