LUANDA, June 19 (Xinhua) -- Five African countries have signed the "Luanda Agreement" to defend and promote natural diamonds, pledging to contribute 1 percent of their annual sales revenue to fund a ...

MEXICO CITY, June 18 (Xinhua) -- Mexican President Claudia Sheinbaum said Wednesday she had spoken with U.S. President Donald Trump and proposed a broad agreement encompassing security, immigration ...

6月16日，中国-中亚峰会期间，在哈萨克斯坦能源部长叶尔兰·阿克肯杰诺夫的见证下，中国化学国际公司联合东华公司与哈萨克斯坦天然气公司科研院正式签署《哈萨克斯坦煤制气项目合作协议》。这不仅是哈萨克斯坦 首个煤制气项目 ...

▲摘要：在此，通过X射线自由电子激光器的原位X射线衍射，我们在约100万个大气压的压力下对液态碳进行了精确的结构测量。我们的结果显示了一个具有瞬态键、平均约有四个近邻的复杂流体，与量子分子动力学模拟一致。

Dhaka, June 13 (UNI) Bangladesh Chief Advisor Mohammad Yunus and BNP chairman Tarique Rahman have agreed that general elections could take place a week before Ramadan in the second week of February, p ...

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