单词:evaporating pressure regulating valve
单词:evaporating pressure regulating valve 相关文章
Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there wi
Broadcast: May 12, 2003 By Jill Moss This is the VOA Special English Development Report. Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels
This is the VOA Special English Agriculture Report. Pieter Hoff used to export lilies and tulips from the Netherlands. He retired from the flower export business seven years ago. Now, he is trying to help people grow trees and plants in the desert --
There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th
BEIJING, Jan. 11 (Xinhua) -- China will continue its regulation of land supply for housing use in 2013 to promote the stability of land market and healthy economic growth, a senior land and resources official said on Friday. Xu Shaoshi, minister of l