under till是什么意思

网络释义

用法例句

Based on the data of geology,geochemistry,geophysics,and deep tectonic evolution,we discuss the double-basement-crystalline-basement (Ar3Pt1),folded-and-metamorphic basement (Pt2-3),cover (NhZ),upper and lower glacigenic rocks,and boundary of blocks in "Western China Block".

综合地质学、地球化学、地球物理学及深部构造等方面的资料,对"西域陆块"双重基底-结晶基底(Ar3Pt1)与褶皱基底(Pt2-3)、盖层(NhZ),上下冰碛层,陆块边界等方面进行了初步探讨。

There are many moraine slopes which are high and steep along the north bank of Purlung Tsangpo River because of construction of Sichuan-Tibet Highway.

在帕隆藏布北岸的川藏公路上,有许多冰碛高陡切坡。

The research area is located at the head area of Urumqi Rjver，above 3000m and in al-pine periglacial environment．On the moraines of the Last Glaciation and Neo一glaciation al-pine meadow soils develop from 3000 to 3700 m.

末次冰期冰碛和新冰期冰碛上发育高山草甸土，海拔３０００－３７００ｍ。

This paper is intended to present a preliminary model of transfo(?) mation from moraine to the deposits of glacial debris flow, to describe the distinguishing marks between the two types of deposits, and to compare and study some characteristics of granularity, light and heavy mineral, clay mineral and gravel fabric of them.

继初步建立起冰碛转化为冰川泥石流堆积模式及其沉积判别标志后,又对它们的粒度特征、矿物特征与砾石组构特征等进行了悉心研究。

In this paper,an improved model with upswing numerical solution,model assumption and model structure for estimating ice ablation under a debris cover is proposed to present a robust model and to reduce the errors as compared with the previous models.

针对已有的表碛下冰面消融模型的缺点,通过对模型算法、模型假设和模型结构等方面进行改进,在模型的易用性和模拟精度上有了较大的提高。

In this paper a simple numerical model is developed to estimate the ice ablation under a debris cover on the basis of heat transfer theory and energy conservation theory.

根据热传导理论和能量平衡原理建立了一个简单的数学模型,对表碛下冰面的融化热进行了估算。

Analyses on the outputs show that net radiation is the primary heat source, and the heat absorbed in the debris cover is lost mainly in the form of sensible heat and latent heat for moisture and heat .

利用能量平衡原理、热传导理论和通量传输理论建立了一个热量平衡参数的估算模型, 对西天山的科奇喀尔冰川夏季消融区中部表碛区的热量平衡参数进行估算与分析。

till (glacial till)

冰川沉积物, 冰碛物

The surface material consists of drift.

表层介质是冰碛组成的。

An elongated hill or ridge of glacial drift.

鼓丘长形小山或冰碛丘

These ridges formed by glaciers or lava flows are called moraines.

由冰川和熔岩形成的侧脊叫冰碛。

Rock debris transported and deposited by or from ice, especially by or from a glacier.

冰碛由或从冰，尤其是冰山，移动和沉积的碎屑

The uranium deposits are obscured by sand, peat and glacial drift.

铀矿床被砂子，泥炭和冰碛物所覆盖。

Process of Accumulation and Characteristics of Glacial Debris Flow Deposits Trangformed by Moraine

冰碛转化为冰川泥石流堆积过程及其沉积特征

The Glacier and Debris Extraction Based Aster Data

基于ASTER数据的冰川及冰碛物的提取方法研究

The Differential GPS Surveying on the Little Ice Age Moraines in the Qilian Mountains and Its Geomorphology Significance

祁连山小冰期冰碛垄差分GPS测量及其地貌意义

A short ridge or mound of sand and gravel deposited during the melting of glacial ice.

冰砾阜，冰碛阜冰川冰融化过程中沉积下来的低矮的沙石堆

On the Genesis of the First Moraine on the Glacier No. 1 at the Head of Urumqi River, Tianshan

天山乌鲁木齐河源1号冰川冰面第一道垄状冰碛成因的初步分析

We hiked to the top of the moraine and had a better view of the lake.

我走到冰碛石顶部,才有拍摄此湖的较佳视野.

CHARACTERISTICS OF THE DIFFERENTIAL THERMAL CURVE OF CLAY MINERALS IN SOME TILL MATERIALS ON THE QINGHAI-XIZANG PLATEAU

青藏高原某些冰碛物的粘土矿物差热曲线特征

THE GEOLOGICAL CHARACTERUSTICS OF THE TILL CONGLOMERATE OF THE YINTUN FORMATION IN THE UPPER PRECAMBRIAN OF THE NORTHERN LIAONING

辽北上前寒武系殷屯组冰碛砾岩地质特征

Research on the Engineering Geological Properties of Moraine/Outwash Rocks on the West Side of the Yulong Mountains

玉龙雪山西麓冰碛(水)砾岩的工程地质特性研究

Hazard Assessment of Moraine-dammed Lake Outburst Floods in the Himalayas,China

我国喜马拉雅山区冰碛湖溃决危险性评价

An accumulation of boulders, stones, or other debris carried and deposited by a glacier.

冰碛由冰川携带并最后沉积下来的石砾、石块及其他碎石的堆积

A depression left in a mass of glacial drift, formed by the melting of an isolated block of glacial ice.

锅状陷落冰碛物中留下的陷落，由孤立冰川的雪块融化而成