论文部分内容阅读
A Delta's New Vision
【出 处】
:
北京周报(英文版)
【发表日期】
:
2020年36期
其他文献
Trade in services has existed since ancient times. Ancient Chinese philosopher Confucius (551-479 B.C.) started the tradition of giving private lectures in othe
期刊
Last year, Gao Linze, a 16-year-old high school student, was the final visitor at the Shanghai Book Fair (SBF). This year, when the fair held its 17th edition a
期刊
与其他制备纳米材料的方法相比,激光法因为具有环境友好、操作方便等优点而得到广泛的应用。激光液相烧蚀法由于产物受到液体限制,其制备机理与气相烧蚀不同。硫化铅是一种窄
U.S. restrictions on Huawei seem to have no end in sight. On August 17, the U.S. Commerce Department expanded its curb on the Chinese tech giant to cut off all
期刊
In February, when the novel coronavirus disease (COVID-19) had started to affect production, construction and other economic activities, construction on the Chi
期刊
近几年建筑工程建设数量逐渐增多,工程造价是需要重点考虑的一项内容,控制好工程造价是保证建筑工程经济效益的关键.因此,本文对工程造价控制中建筑工程预算实施的相关内容,
铜在硅中不仅具有很大的扩散速率,而且随着温度的降低它的固溶度迅速下降,这两个特性使得铜原子很容易在器件制备过程中沉淀下来,严重影响硅片性能。虽然科研工作者们已经提出了
With over 2,000 years of history, the Hongya Cave, an ancient fortress in Chongqing, southwest China, is a mustsee for visitors to the city.
期刊
While companies worldwide grapple with the novel coronavirus disease (COVID-19), Chinese tech giant Huawei has to contend with other challenges as well.
期刊
The peace deal reached between the United Arab Emirates (UAE) and Israel on August 13 is a milestone in the relations between the Arab world and Israel. It also
期刊