单词:vacuum suction roll
单词:vacuum suction roll 相关文章
Part 13 Ballast handling 1. Scuppers plugged. 2. Open sea suction valve and report. 3. Sea suction valve closed. 4. Ballast pump stopped.
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
DIALOG 30 1--Did you hear about that guy who climbed a skyscraper? 2--I don't believe I did. Was it on the TV news last night? 1--Uh-huh. This guy-calls himself
DIALOG 30 THE HUMAN FLY 1--Did you hear about that guy who climbed a skyscraper? 2--I don't believe I did. Was it on the TV news last night? 1--Uh-huh. This guy-calls himself
DIALOG 30 THE HUMAN FLY 1--Did you hear about that guy who climbed a skyscraper? 2--I don't believe I did. Was it on the TV news last night? 1--Uh-huh. This guy-calls himself
讲解文本: spotless 无灰尘的,干净清洁的,一尘不染的 I like this room, it's always spotless. 我喜欢这个房间,一直是干干净净的。 Every morning cleaners make sure everything is spotless 每天早晨,清洁工们会