(a) As has been mentioned, some postulated that phlogiston has negative weight (levity).

(a) 正如所提到的那样，某些燃素会减轻（轻率）的假定。

We begin by establishing the unbiasedness of OLS estimators under a set of assumptions.

首先，一些假定下证明OLS估计量的无偏性。

Let’s postulate that she is a cook.

假定她是一位厨师。

Let's suppose (that) the news is true.

让假定这消息是真的。

A scientist never presupposes the truth of an unproved fact.

科学家从预先假定未经证实的事实。

Let us presuppose that he wins the game.

让先假定他赢得这场比赛。

So it is very indispensable to revaluate the rear hypothesis of the present capital market theory.

因此，重新估价当今资本市场理论的背后的假定是十分重要的。

I gambled that they wouldn't shoot.

大胆假定他会开。

These are all perhapses.

这全是假定。

Your assumption is wrong.

你的假定是错的。

First, it is assumed that the polytope exists in the system matrix, input matrix and measure matrix of the stale space model.

首先，假定多胞型确定参数存于状态空间模型的系统矩阵、输入矩阵和量测矩阵中。

Most seed orchard theory is based on the assumption that panmixis will occur and that selfing will not be a serious problem.

大多数关于种子园理论，是以假定能发生随机交配和自花受精而会成为严重问题为依据的。

But suppose in spring the farmer had left the toil unturned,the seed unsown,the trees untrimmed,and everything neglected,what would now be the result?

但是，假定农民春天耕土，种籽，修剪果树，什么都干，那么现会出现什么结果呢？

It may trivialise, demean, irritate or insult women.Research evidence shows that language use affects the ways in which people view themselves and others.

如果一种语言理所当然假定一切应以社会上的男性、或者社会上男性的观点为规范标准，这种语言就是性别歧视的语言。

Without assuming the form of unstrained state,the form of unstrained state corresponding to that of pre-stressed state can be obtained through this method directly.

该方法无需假定结构零状态几何,而可以一次得到对应于初状态(即预应力态)几何的结构施工放样尺寸(即零状态几何),并通过分级加载对该方法的精度进行了检验。

Nothing was more calculated to annoy Halidome than to tell him he was"begging the question", for he prided himself on being strong in logic.

没有比说他“以假定作为论据进行诡辨”更能使赫利多姆生气的事了，因为他惯以逻辑强为自豪。

In the fitting methods of both the ordinary nonparametric regression models and the varying coefficient regression models, the error term of the models is usually assumed to be homoscedastic.

以上这些回归模型的拟合方法中，通常假定模型的误差是等方差的。

From this point simply swing forward and up and the racquet will naturally become vertical at contact, provided that you swing from the shoulders and do not get too wristy.

从这点，假定网拍接触点下面一呎，只是向前和向上挥拍, 如此网拍将自然接触中变成垂直，假设你是从肩膀挥拍而且是太用到手腕的话。