Physical weathering: thermal expansion and contracting, ice wedging, exfoliation, salt crystallization.

All of the bauxites are formed by weathering without any exception.

铝土矿全部是风化作用形成的,无一例外.

The deposit is formed in marine invasion by weathering crust transportation, sedimentation, diagenesis and super genesis.

矿床是在海侵过程中风化壳解体,经搬运 、 沉积 、 成岩及表生作用形成.

Many common minerals, such as feldspar, develop microscopic pits during weathering.

许多常见矿物(例如长石)会在风化过程中发展出微小坑洞.

The coatings shows good weathering performance and fire retardancy.

该涂料具有良好的耐候性、阻燃性.

The rock physics mechanics property is bad, weathering and the soil erosion are mightiness.

岩体物理力学性质较差, 风化和水土流失强烈.

Clays are produced by mechanical and chemical weathering and primarily colloidal in size.

粘土是由机械和化学的风化作用形成,主要是胶粒大小.

High resistance to heat, cold, ozone and weathering.

优异的耐热, 耐低温, 耐臭氧,防潮性能.

It has passed weathering resistance & acid resistance test of state building material test center.

已通过国家建筑材料测试中心的耐候性 及 耐酸性测试.

Keywords: CO 2, greenhouse effect, rock weathering, photocatalytic reduction, TiO 2.

关键词: 二氧化碳 、 温室效应 、 岩石风化 、 光催化还原 、 二氧化钛.

Both lateritic deposit and gossan deposit are of weathering origin.

红土型金矿床、铁帽型金矿床同属风化淋滤成因的残坡积表生金矿床.

The main controlling factors of reservoir developing are lithology , lithofacies and ancient weathering crust karstification.

储层发育的主要控制因素为岩性和岩相、古风化壳岩溶作用.

Chemical weathering: dissolution, oxidation, carbonation , hydrolysis, and hydrations.

化学风化: 溶解 、 氧化 、 碳酸岩化 、 水合作用和水化作用.

This suggests that the optimum for biological weathering would be in a hot, moist climate.

这表明生物风化最适宜的条件是湿热气候。

Weathering prepares the rock for transport by decomposing and disintegrating it.

风化作用通过分解和崩解准备了要搬运的岩石.

The movement of water is also an important weathering force.

水的运动也是一种重要的风化作用力.

The magnesite originated from the peridotite by weathering.

菱镁矿是由橄榄岩风化形成的.

In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering.

在许多斑岩铜矿矿床中, 地表风化使得金属铜进一步富集.

The effects of weathering can be simulated in the laboratory.

在实验室里可以模拟各种天气产生的影响.

The soil is depleted first by having crops grown in it and second by natural weathering and bacterial action.

土壤首先是被种植其中的作物消耗掉，其次受自然风化和细菌活动的侵蚀。

There the soil is from weathered limestone soil or loess.

那里的土壤是经过风化作用的石灰石土壤或黄土.