中文原文：
日本启动第二轮排海前准备工作 预计排放约7800吨核污水
报道，测定即将排入海洋的核污染水中的氚浓度，如果浓度符合其所谓的“标准”，将于5日正式开始第二轮核污染水排海。
报道称，第二轮排放的核污染水总量预计仍将在7800吨左右，与第一轮7788吨核污染水排放量大致相同，排放周期约为17天。
报道介绍，截至9月21日，福岛第一核电站内约有134万吨核污染水，达到储罐容量的约占98%，并计划于2023年分四次，排放共计约3.12万吨核污染水。
据此前报道，尽管排海决定遭到日本国内外强烈反对，日本政府和东京电力公司仍于8月24日启动了福岛第一核电站核污染水的排海，第一轮排海于9月11日结束。
英文译文：
Japan has launched a second round of preparatory work to discharge about 7,800 tons of contaminated nuclear water
It is reported that the concentration of tritium in the nuclear-contaminated water that will be discharged into the ocean is determined, and if the concentration meets its so-called "standard", the second round of nuclear-contaminated water will officially start on the 5th.
The total amount of nuclear-contaminated water discharged in the second round is still expected to be about 7,800 tons, roughly the same as the first round of 7,788 tons of nuclear-contaminated water, with a discharge cycle of about 17 days, the report said.
According to the report, as of September 21, there were about 1.34 million tons of nuclear-contaminated water in the Fukushima First nuclear power plant, accounting for about 98% of the capacity of the storage tank, and it is planned to discharge a total of about 31,200 tons of nuclear-contaminated water in four times in 2023.
According to previous reports, although the decision to discharge the sea was strongly opposed at home and abroad, the Japanese government and Tokyo Electric Power Company still started the discharge of nuclear contaminated water from the Fukushima first nuclear power plant on August 24, and the first round of discharge ended on September 11.
重点词汇：
第二轮 second round
准备工作 preparation ; preliminary ; homework ; groundwork
核污染 Nuclear contamination ; radioactive/nuclear pollution
污染水 Contaminated water ; polluted water ; sewage ; purified water
第一轮 first round ; first inning
排放量 Emissions ; discharge amount
福岛 【地名】【日本】Fukushima
核电站 nuclear power plant ; nuclear power station
储罐 storage tank
共计 total ; amount to ; number ; aggregate ; altogether ; add up to ; grand total ;
重点短语：
1. It is reported that 据报道
2. The total amount of ……的总数量
3. Be expected to do sth 被期待做某事
4. According to 根据
5. Although （yet）虽然，但是（不和but连用）
难句分析：
According to the report, as of September 21, there were about 1.34 million tons of nuclear-contaminated water in the Fukushima First nuclear power plant, accounting for about 98% of the capacity of the storage tank, and it is planned to discharge a total of about 31,200 tons of nuclear-contaminated water in four times in 2023.
1. 本句的核心是there were about……and it is planned,是一个并列句，句子比较长，但是结构却仅仅是一个并列句而已。
2. According是一个短语，根据……，作整个句子的条件状语。
3. As of September 21 是插入语。
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