为了建立这样一个年表，有必要确定地球过去不同时期存在的陆冰的相对数量。
To establish such a chronology, it is necessary to determine the relative amounts of land ice that existed at various times in the Earth's past.
一定程度的气候变暖是确定无疑的，但其程度将由冰的融化、海洋、水蒸气、云和植物的变化等循环过程所决定。
Some warming is certain, but the degree will be determined by cycles involving melting ice, the oceans, water vapour, clouds and changes to vegetation and plants.
格陵兰是许多研究人员们关注的一个地方，他们试图确定有多少融冰可能使海平面提高。
Greenland is the focus of many researchers trying to determine how much its melting ice may raise sea levels.
探测器的雷达可穿透冰层，收集有关冰壳内部结构的线索，可能还可以确定冰川和海洋的交汇点。
The probe's ice-penetrating radar will gather clues about the frozen shell's interior structure, possibly identifying where ice and ocean meet.
地球极其复杂的气候系统方面的不确定性，比如融冰和云团的行为等，也可能对总的气温变化结果产生影响。
Uncertainties over aspects of the Earth's immensely complex climate system, such as melting ice and the behaviour of clouds, could also skew the overall picture.
来自科罗拉多大学波德校区的科学家们不能确定海水消失的原因，但他们相信更多的有关海洋的猜想证据仍旧深埋于地表之下的冰中。
Scientists from the University of Colorado at Boulder are unsure why the water vanished, but many suspect traces of the ocean remain in ice buried deep beneath the surface.
在时限上，还有很多不确定因素，许多早期的研究也只利用了一个冰核点考察地址。
This increased uncertainty in timing. Also, many previous studies used only one ice core site.
我们不确定这个冰车会烧多少燃料，根据一系列计算，我们没有足够的燃料往返。
We had no idea how much fuel the ice vehicle would burn - according to one set of calculations, we didn't have enough to make it there and back.
TEGA分析仪对水的特征异常敏感，可以确定冰的熔点。
TEGA is especially sensitive to the signature of water and can determine the melting point of ice.
长期以来，人们一直用临界流速或临界佛汝德数的准则来确定冰塞的演变。
The critical velocity, or critical Froude number criterion has long been accepted as a means of determining frazil jam profiles.
为更加合理地确定锥体平台结构的疲劳冰荷载，对冰力幅值和周期进行了联合概率分析。
The joint probability distribution of them is analyzed, which is great valuable to construct the fatigue ice-load for offshore platform with ice-broken cone.
可供在覆冰区域内的架空线路设计确定覆冰性质、进行频率分析和估算设计覆冰荷载等进行参考。
It can be a certain reference for determining ice sort, frequency analysis and estimating the design ice load on overhead electrical conductors for designing lines in icing areas.
提出了利用管道水击过程中的正压波确定天然气管道冰堵位置的原理和方法。
The theory to confirm the location of blockage in pipeline which using the positive wave happened in the course of water hammer was first put forward in the paper.
基于现场原型结构测量，研究了冰与锥体结构相互作用的动冰力与冰激锥体结构振动，建立了确定性冰力函数。
A deterministic ice force function of the conical structure is proposed in the paper It is based on the full?
研究表明：初始冻结强度在宏观规模析冰的一次冻结法中为非敏感参数，无法确定负温砼抗冻临界强度。
Research showed that the initial strength is not sensive under the situation of macroice-separated out. As a result, the critical strength can not be decided by it.
南国冰臼群的确定，是在发现大量古冰川遗迹的基础上提出的。
The moulins in South China were determined, based on the discovery of many paleo-glacial remnants and the comparison of the moulins that had been found in China and abroad.
南国冰臼群的确定，是在发现大量古冰川遗迹的基础上提出的。
The moulins in South China were determined, based on the discovery of many paleo-glacial remnants and the comparison of the moulins that had been found in China and abroad.
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