单词：chloroformyl-
[网络] 氯甲酰基
单词：chloroformyl- 相关文章
U.S. President Donald Trump (R) speaks before signing a decision memo and a letter to members of Congress outlining a plan for privatizing the nation's air traffic control system, in the East Room of the White House, in Washington DC, on June 5, 2017
2017CRI中国国际广播电台
Steve Shladover outlines the benefits to be gained from vehicles that could drive themselves and discusses how this could be achieved. 斯蒂夫·施多弗阐述了能自动运行的车辆的诸多裨益
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By Paul Sisco Washington, D.C. 21 June 2007 Government and industry officials say America's crowded airways are becoming more so. The technology exists to make air travel safer, and energy efficient, but so far efforts to improve the situation are mo
2007年VOA标准英语（六月）
KELLY MCEVERS, HOST: The White House announced a plan today to privatize the U.S. air traffic control system. This is part of the administration's focus this week on the country's aging infrastructure. President Trump says the FAA has been trying to
2017年NPR美国国家公共电台6月
As Africas only aerospace and defence expo that combines both a trade exhibition and an air show, the five-day 2018 Africa Aerospace and Defence (AAD) has started Wednesday in the city of Tshwane, South Africa. Organised by Chinas State Administratio
2018CRI中国国际广播电台
A (address) resource record / A（地址）资源记录 AAL, ATM adaptation layer / ATM 适配层 ABR, area border router / 区域边界路由器 ABR, available bit rate / 可用的传输率 access con
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