The（）enables water to be blow down or emptied from the boilerIt may be used when partially or completely emptying the boiler.

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

由清华大学国家大学科技园、天津大学国家大学科技园、保定国家大学科技园等19家国家级大学科技园组成的京津冀大学科技园联盟在（）成立。

（）年，南昌大学科技园被国家科技部、教育部列入国家大学科技园建设行列，这是江西唯一一所国家级大学科技园。

Charging is the filling of the engine cylinder with a supply or charge of fresh air （） compression.

（）年，南昌大学科技园被国家科技部、教育部列入国家大学科技园建设行列，这是江西唯一一所国家级大学科技园。

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

When the author wrote “KEXP did not release numbers” in Paragraph 4, he or she most probably meant that KEXP did not.

Maya Lin was an undergraduate student atYale when she was ______ to create the Vietnam Veterans Memorial in 1981; she was granted this honor when she won the public design competition for the memorial.

中国著名大学科技大学位于哪一个城市？（）