Who is to preside over the meeting hasn't been decided.这个会议要谁来主持还未决定.Who happened to preside over the economic crisis at the time?当发生经济危机时谁正好在掌权?Every Monday morning I convene and preside over our department meeting...
将蚯蚓放在稀释盐溶液中.These worms are placed in dilute salt solutions.在温度标准化中采用盐溶液.Salt solutions are used in humidity standardization.用盐溶液冲洗伤口,减少了85%的感染可能性.Irrigation of the wound with saline solution removed 85 % of the infectio...