Support of steel shed in form of U-shape Injecting
U型棚支护
巷道变形
围岩注浆加固
预留层卸压
one-dimensional fundamental form in space
空间一维图形
Li is an important theory category in Carving the Dragon .There are lots of Li in Carving the Dragon and they are standard of measuring writers and work.The article illumistrates by the way of writers
2e)反应
A bird in the hand is worth two in the bush
双鸟在林不如一鸟在手
a friend made in hospital or people who become friends in hospital
病友
a system of payment partly in kind and partly in cash