critical mass

英 [ˌkrɪtɪkl ˈmæs]

美 [ˌkrɪtɪkl ˈmæs]

n.  (核链式反应的)临界质量

电力

牛津词典

noun

• （核链式反应的）临界质量
  the smallest amount of a substance that is needed for a nuclear chain reaction to take place

柯林斯词典

• (核链式反应的)临界质量
  In physics, thecritical massof a substance is the minimum amount of it that is needed for a nuclear chain reaction.
• N-SING (某事发生或继续所需的)足够数量
  Acritical massof something is an amount of it that makes it possible for something to happen or continue.
  1. Only in this way can the critical mass of participation be reached.
     只有这样才能凑足参与人数。

英英释义

noun

• the minimum mass of fissionable material that can sustain a chain reaction
• the minimum amount (of something) required to start or maintain a venture
  1. the battle for the computer market has now reached critical mass
  2. there is now a critical mass of successful women to take the lead
  3. they sold the business because it lacked critical mass

双语例句

• The next thing it hit, a year later, was critical mass.
  一年以后，它进入下一个阶段，也就是临界量。
• We've reached critical mass and there's no turning back.
  我们已经到了最关键的时刻，而且没有回头路。
• Their presence created a critical mass of innovation.
  他们的出现引发了大量创新。
• We have a critical mass of banks.
  我们已经有了数量可观的银行。
• What's the killer feature that seems to provide critical mass for this framework?
  哪种至关重要的特性为此框架提供了关键部分？
• But you need awareness, some angle to get critical mass but also so people can turn to you.
  但是你们需要打响知名度，要通过一些独特的角度来获得关键的多数客户，这样才能吸引大量客户。
• Spring is rapidly maturing and has the critical mass to be a player for the foreseeable future.
  Spring正在快速成熟，并将在可预见的未来成为一个参与者。
• What happens when the number of students making that choice reaches a critical mass?
  如果如此选择的学生变成了大多数，会怎样？
• Nuclear fission has contributed to our society some new phrases& "critical mass" and "critical size". Correlation of critical mass velocity has been provided.
  原子核裂变给我们的社会带来了一些新词汇&临界质量和临界大文中还给出了临界质量流速的试验关联式。
• This creates what is known as a critical mass of nuclear material, which releases its energy instantaneously as atoms inside it split in an uncontrolled chain reaction.
  这会造成核原料所谓的临界质量，当其中的原子在无法控制的连锁反应中分裂时，能在瞬间释放出能量。