Consequently, it is often necessary to close a series of basins by means of sluices and thus maintain a constant water level in the closed port section.

因此有必要使用泄水闸来封闭一些港区，以保持封闭港区中的水位。

youdao

More than 500 residents of the port city remained cut off from their homes by the standoff, and local businesses and three nearby schools remained closed.

由于双方仍处于对峙阶段，这个港口城市超过500名居民滞留在外，商店和附近的三所学校仍然关闭。

youdao

If you provided a wrong sequence of knocks (or no knocks at all), you would receive a "Connection timed out" message, and the SSH port would remain completely closed with no sign of its existence.

如果提供了错误的敲门序列(或根本没有敲门)，会收到“Connection timed out”消息，SSH端口仍然完全关闭，看不出它是存在的。

youdao

Nineteen-year-old Cimeau Cassandra is one of several students from Port-au-Prince whose schools are now closed and who have come to Mirebalais to register for classes.

VOA: standard.2010.02.01

Schools remain closed in the parts of Port-au-Prince that were hardest hit by the earthquake.

VOA: standard.2010.02.01

The French port of Calais was closed on Saturday and that caused a huge backup of vehicles around the English port of Dover where ferry services were hit.

VOA: standard.2009.12.21

Authorities closed the port, one of Israel's key shipping center's.

NPR: Haifa Adjusts as Hezbollah Rockets Rain Down

The closed British Columbia port is known as the Douglas or Peace Arch crossing, and Canadian authorities are asking motorists to use another area crossing, said Faith St.

CNN: STORY HIGHLIGHTS

The Port Authority closed its four city-area airports Monday night because of flooding.

WSJ: Salt Water Puts City's Subway System 'in Jeopardy'