您要查找的是不是：
- The criterion for gravitational contraction set by Equations (3. 4) is significantly weaker for more massive clouds. 由(3.;4)式建立的引力收缩判据;对质量较大的云是很牵强的。
- According to the nebular hypothesis, a cloud of interstellar dust and gas underwent gravitational contraction, eventually forming a solar nebula. 根据星云假说，星际尘埃和气体的云块经历重力的收缩后，最后形成太阳星云。
- The electron degenerate pressure does not come from the burning of any nuclear fuel and can therefore support the star from further gravitational contraction forever. 电子简并压力并非来自任何核反应所以它能永远抵抗恒星的引力。
- The triggered star formation occurs when hot outflowing gas compresses cooler gas into knots dense enough to gravitationally contract into stars. 当炽热的流动气体压缩成较冷的气体，形成致密的节点，等到有足够的重力形成恒星时，这时候就触发了恒星的诞生。
- "I'll" is a contraction of "I will". “I'll”是“I will”的缩写。
- A syndicate of local businessmen is bidding for the contract. 一个当地企业家的联合组织在向这一合同投标。
- It is impossible for him to get off the contract. 他不可能解除契约对自己的束缚。
- I'm under contract to teach here for one year. 我按照聘约要在这里教一年书。
- Their acceptance of the contract is still in doubt. 他们是否接受那合同还说不准。
- A penalty clause was written into the contract. 在合同中写入了一项罚款条款。
- It's clearly a breach of contract. 这显然是违反了合同。
- Described as elephant trunks or Pillars of Creation, dense, dusty columns rising near the center are light-years in length but are gravitationally contracting to form stars. 这些被称为是大象鼻子或创生之柱的致密尘埃柱，在影像的中心延伸了数光年，而且在重力挤压下不断形成恒星。
- I am under contract so I must finish the job. 我有合同在先，所以必须完成这项工作。
- I won't discuss the minutiae of the contract now. 我现在不商谈合同的细节。
- gravitational contraction 重力收缩,引力收缩
- The contract is incorrectly worded. 该合同措词不正确。
- Most of the contract have arbitration clause. 大多数的合同都有仲裁条款。
- I don't know the exact terms of the contract. 我不知道合同的正确条款。
- Why Bother Looking for Gravitational Waves? 为什么要寻找引力波?
- Find out what the conditions of the contract are. 弄清楚合同的条件是什么。
