假设地

Scientists have long assumed that pterodactyls also called pterosaurs flew just like birds and launched themselves using their hind legs.

科学家们长期以来假设翼手龙和鸟儿一样地的飞翔，也使用它们的后腿来起飞。现在一名来自约翰。

The virtual geomagnetic pole calculated under the assumption of a central dipole field is generally different from the real geomagnetic pole since effect of the non-dipole field.

古地磁学使用的虚地磁极是在地心偶极磁场假设下计算的，由于地球非偶极磁场的存在，VGP一般不同于真地磁极。

Those who think that philosophy should be a quasi-scientific, problem-solving, discipline---one in which definitions are spelled out, premises identified, and assumptions made explicit—had no use for Derrida, nor he for them.

那些认为哲学应准确於科学，能解决问题，应有规律─那些认为定义应被明确指出，提论应有验证，假设应明确述说的人，对德理达毫无用处。相同地，德理达对他们也派不上用场。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上，对聚合裂解的假设进行数学处理，导出催化双基推进剂的燃速公式和燃速压力指数公式；实验验证结果表明，模型中的公式可以定量地再现双基平台推进剂燃烧中的超速，平台和麦撒现象，而且计算值和实测值符合得较好。

Initially, assuming that the contact between cam and tappet is"dry contart", a dynamics model of Hertzin contact stiffness and impact damping is established. Next, with dynamic load on cam—tappet pair from the model, an analysis is made both to unsteady EHD oil film in cam—tappet pair under condition of full and partial lubrtication and to wear characteristics of cam profile. then, according to the fact that the lubrication in cam—tappet contact surface is EHD lubrication, taking the interaction between stiffness and damping of unsteady EHD oil film and rigidity of solid object contact into account, a dynamics equation of valve train relating to the dynamic effect of EHD oil film is built up and solved. Consequently, a further study is made on the dynamic characteristics of valve train under interaction of EHD oil film dynamic behavior and the problem of EHD lubrication in cam—tappet pair. Finally, the dynamic effect of full and partial EHD oil film is studied accordingly.

首先，通过对凸轮—挺杆接触为&干接触&的假设，建立了考虑赫兹&接触刚度&和冲击&阻尼&的配气机构动力学模型，用由此求得的凸轮—挺杆表面动载荷对凸轮—挺杆进行了全膜状态和部分膜状态非稳态弹流润滑分析，并研究了凸轮轮廓的磨损规律；然后，是在凸轮挺杆表面存在弹流动压油膜这一事实的基础上，相当于在动力学方程中考虑非稳态弹流油膜的&刚度&、&阻尼&和固体接触&刚度&的耦合作用，建立并求解了考虑弹流润滑行为动力学效应的配气机构的动力学方程，从而深入地研究了弹流润滑行为与动力学行为耦合作用下的配气机构动力学特征以及凸轮挺杆弹流润滑问题；作为前面工作的对应部分，考虑弹流油膜动力学效应的研究工作也同样分为全膜状态和部分膜状态进行。

It is assumed that development will be possible to begin to operate in the promising parallel and sequential system buses for the applications, sensitive to the energy consumption.

这是假设的发展将有可能开始运作，在有前途的并行和顺序系统的巴士，为应用，敏感地认识到能源消耗。

But when his group stratified the cohort by mutation status, they observed differences in risk reduction."These results also generate the hypothesis that the protection conferred by risk-reducing salpingo-oophorectomy against specific cancers may differ between carriers of BRCA1 and BRCA2 mutations," Dr. Kauff told attendees."We found that it is highly protective against BRCA -associated gynecologic cancer in both 1- and 2-mutation carriers." And in breast cancer, his team observed a protective effect in BCRA 2 mutations.

当他的团队统计研究对象的突变状态时，他们观察到风险降低的差异性；Kauff医师向与会听众表示，这些结果也产生了藉由风险降低的输卵管卵巢成形术，对特定癌症所提供的保护效果或许会因BRCA1和BRCA2载体突变而有差异的假设；我们发现对这两种载体突变可以高度有效地对抗BRCA有关的妇科癌症；至于乳癌，他的团队观察到在BCRA2突变有保护效果。

But when his group stratified the cohort by mutation status, they observed differences in risk reduction."These results also generate the hypothesis that the protection conferred by risk-reducing salpingo-oophorectomy against specific cancers may differ between carriers of BRCA1 and BRCA2 mutations," Dr. Kauff told attendees."We found that it is highly protective against BRCA -associated gynecologic cancer in both 1- and 2-mutation carriers." And in breast cancer, his team observed a protective effect in BCRA 2 mutations.

当他的团队统计研究对象的突变状态时，他们观察到风险降低的差异性；Kauff医师向与会听众表示，这些结果也产生了藉由风险降低的输卵管卵巢成形术，对特定癌症所提供的保护效果或许会因BRCA1和BRCA2载体突变而有差异的假设；我们发现对这两种载体突变可以高度有效地对抗BRCA有关的妇科癌症；至於乳癌，他的团队观察到在BCRA2突变有保护效果。

Here is a thing. A lot of people automatically assume white meat is better because of calories.

还有个问题是，很多人自动地假设白颜色的肉在热量方面要好一些。

Rather, this initial crosscountry analysis fails to reject the null hypothesis that the relative size of the SME sector per se does not exert a causal impact on growth or poverty alleviation.

相反地，这种初步的跨国别分析没有摈弃如下这种零假设，即中小企业部门本身的相对规模不对增长或消除贫困产生一种因果关系的作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。