Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...

Plastics are everywhere, shaping industries with their durability, low cost, and lightweight properties. Over the last seven ...

et al. Evolution law of slag shell in bipolar tandem electroslag remelting process[J]. Iron and Steel, 2024, 59(11): 89.) 毒重石对含钛无氟保护渣熔渣结构和析晶行为的影响 引用本文：刘子瑶, 刘磊, 韩秀丽, 等. 毒重石对含钛无氟保护渣熔渣结构和析晶行为的影响[J]. 钢铁, ...

Change orientation to land scape to view the price table ...

Change orientation to land scape to view the price table ...

Canada’s Air Pollutant Emissions Inventory (APEI) is a comprehensive inventory of air pollutant emissions at the national, and provincial and territorial levels. The APEI is prepared and published by ...