单词:servo cylinder (hydraulic)
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NB: This is not a word for word transcript Yvonne: Hello, I'm Yvonne Archer, this is 6 Minute English and thanks to Alice for joining me today. Alice: Hi Yvonne. Yvonne: Hello Alice. Now recently, an artefact - a very old piece of art - which many hi
Oil spill, Day 42 of this oil spill in the Gulf of Mexico. Still there is no end in sight for this crisis. Right now take a look with me. Work under water and under way to place a custom built dome over that ruptured well. Remember that effort top ki
Study: No Evidence Hydraulic Fracturing Pollutes Water A new study finds no evidence that the controversial practice to extract natural gas known as hydraulic fracturing is contaminating ground water. The report, Separating Fact from Fiction in Shale
Scientist uses tree rings to reconstruct 13th century climate Art Chimes | Washington, DC 05 April 2010 Photo: Photos.com Related Links: Angkor paper (full text) Buckley lab We started seeing these big, giant periods of drought that took place around
Factory workers are about to get super-human strength thanks to Nasa's 'Robo-Glove'. 有了美国航天局(NASA)研发的机器人手套,工厂工人将获超人之力。 The glove helped scientists control Robonaut 2, a humanoid that provided