必要条件

The appearance and the rise of leaseholds were necessary to form capitalist farms.

这种以契约关系为基础的租佃地的出现和流行是形成资本主义租地农场的必要条件。

Misaligned incentives were not sufficient to do it and not necessary either.

不当的激励机制既不是危机发生的充分条件，也不是其必要条件。

The sine qua non of such mythopoeia, for Tolkien, is the making of a world that resembles ours but is not ours, a world that possesses internal logic and self-consistency to the same degree that ours does - but not the same logic: it must have its own rules, rules that are peculiar to it and that generate consequences also peculiar to it.

对托尔金而言，进行神话创造的必要条件是创造一个世界，要与我们的世界相似但又不同，和我们的世界一样都拥有内在逻辑性和自身连贯性，但那又是一种不同的逻辑：它必须有自己的规则，是那个世界特有的规则，然后产生出规则背后特有的结果。

To switch spontaneously from a "1" to a "0" would entail the particle moving some 200 nanometres along the tube using thermal energy.

铁粒子利用热能沿着毫微管移动近200纳米是自发从&1&切换到&0&的必要条件。

The speech was also Huxley's attempt to define an orthodox Darwinian position on the question, and attempt to define as "non-Darwinian" all those Darwin supporters who believed that spontaneous generation up to the present day was an essential requirement of evolutionary science.

赫胥黎在这篇演讲中也试图在这个问题上划定正统达尔文学说的位置，并试图将&非达尔文者&划定为那些相信自然发生说直至今日仍是进化论的必要条件的达尔文支持者。

Courage to start and willingness to keep everlasting at it are the requisites for success .

有勇气开始并愿意始终保持这种勇气，是取得成功的必要条件。

Under the right circumstances methane can play a key role in prebiotic chemistry -- the chemical reactions considered necessary to form life as we know it.

在合适的条件下，甲烷在生命前化学中起着关键作用，——被认为是形成生命的必要条件的化学反应。

The patchworks of gender consciousness allow activists to maneuver with the authoritarian government and also work with international funding agencies.

中国政府在一九九五年世妇会上确定了男女平等的基本国策，虽然没有直接提及性别，但国际接轨的道路上对「性别」的认同是必要条件，而「性别」在中国仍旧是一个浮动的概念，运动者在不同的情境脉络中可以随时挪用或混用。

The PMO and project implementation agency should conduct consultation to the local population to collect feedback from the PAPs regarding the land acquisition and resettlement plan, policy for compensation, resume of income, etc.

项目办和子项目实施方要在项目区开展参与性咨询。广泛接受PAPs建议的措施－包括替换土地，补偿政策和比率，建议的移民收入恢复措施－是批复移民计划的必要条件。

The results also prove that products should be oxidated first in order for reducing start temperature to low in course of reducing atmosphere sintering.

研究结果还表明：陶瓷制品还原气氛烧成过程中，制品充分氧化是降低还原开始温度的必要条件。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。