... density of hydrogen is as lower as 1/14.5 of air. When filled up with hydrogen, the balloon (including the rubber sheet covering and the hydrogen...
1. Pipe A takes 12 hours to fill up a tank. ⇒ In 1 hour, pipe A can fill up 1/12 of a tank. Pipe...
dominique has went to fill up her car with gas at the exxon stasion 應改為 should be changed as...
...第二週期。 我想這句是想說 S 屬第三週期（Period 3）。 ===== fill up to 18e- 這句的意思也不清楚，我想原意是「第三週期原子的三層電子層可以...
... A and B are used to fill up a tank with water. If tap A isused alone to... filled by tap B alone = 1/(t - 25) To fill up the tank: (1/t)*20 + [1/(t - 25)] * 20 + {(1/t) + [1/(t - 25...
...application form. The notice should be filled in before Monday. fill up 係填滿 通常係講填滿容器 e.g. The cup is filled up of...
A tank canbe filled up in 2 h 30min when 3 taps are turned on. How long ... a relationship between time and no.of tap is always constant so,we set up this formula let t min be the time used when 5 taps are ...
... nothing wrong to have 2個介系詞係一齊, such as "look up to", " fill up with", "turn down to"
