单词:electronically tunable optical filter
单词:electronically tunable optical filter 相关文章
But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi
1. electronic,电子的,电子操纵的。 eg:Data is transmitted electronically. 数据是电子传输。 2. commerce,商业,贸易,交易。 段中说到的electronic commerce多被简称为E-Commerce,表示电子商务。 eg:Our overseas comme
[00:00.00]Module 8 IN A MUSEUM [00:07.39]UNIT 1 I'm really excited to be here. [00:12.59]1 Listen and read. Then say. [00:17.92]Thanks for bringing me to the Science Museum [00:20.03]today, Dad. [00:21.66]I'm really excited to be here. [00:24.25]Ther
From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a
SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i
The Kodak company plans to stop selling traditional film cameras in the United States, Canada and western Europe by the end of this year. Sales of cameras for use only one time will continue. Kodak will also continue to sell its traditional thirty-fi
ECONOMICS REPORT - New Law Changes U.S. Checking System By Mario Ritter Broadcast: Friday, August 27, 2004 This is Gwen Outen with the VOA Special English Economics Report. A change in the United Stat
By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin