风化

Dinosaur fossils are buried in argillaceous rocks of the Middle Jurassic Shaximiao Formation.

笔者对该恐龙化石埋藏地沙溪庙组泥质岩的常量元素、微量元素和稀土元素特征进行了研究，并根据泥质岩的地球化学特征讨论了物源区性质、构造背景以及物源区的风化特征。

As a result of the continuing exposure to meteorologic influences such as rain, sunshine, wind and frost, as well as to industrial atmospheric pollutants, the surface of asbestos cement products corrodes and weathers.

由于持续的受到比如雨水、日照、风和雾的各种气象影响，以及受到各种工业大气污染，石棉水泥产品的表面会发生腐蚀和风化。

Photo Gallery: Erosion and Weathering A thunderstorm does its part to shape Utah's Mussentuchit Badlands.

意译：侵蚀和风化的图片画廊。一次雷暴雨使它的一部分形状犹他州的Mussentuchit荒地。

Biotite ; weathering ; mineral change ; granite ; Guangdong Province

黑云母；风化；矿物变化；花岗岩；广东省

Combined with mechanical experiment ultrasonic wave testing is performed to investigate the quality and weathering status of rock specimens obtained in double borings situated in cliff of Grand Buddha of Jinyang in Taiyuan.

运用声波测试方法，结合物理力学试验，研究太原晋阳西山大佛陡崖岩体2个水平钻孔中岩石的质量和风化情况。

Physically, the rocks break down into smaller and smaller pieces.

物理上，岩石风化成越来越小的的部分。

Efflorescence on new brickwork may be unsightly, but is unlikely to cause damage.

不易发现新铺砌的墙面上的风化痕迹，几乎没有损害。

The uncertainty of measurement for the determination of chloride content in water by silver nitrate titration method was evaluated.The influence of the factors on the uncertainty of measurement for the determination of chloride content were analyzed, including repeatability of measurement results, burette, the concentration of standard solution, etc.

氯化物进入地表水中有自然和人为两种因素，岩石风化可使自然界中的氯化物进入地表水中，同时工业及生活污水的排放和海水倒灌也会给地表水中引入大量的氯化物，地表水中氯化物含量的变化是监测排污和咸潮影响的重要指标。

Use steel brush or burnisher to clean dust and weathered layer on the surface of concrete

用刚刷或角磨机去除混凝土表面的浮尘和风化层

The sixteen plants are firstly divided into six types according to evaluation grades and subject function statistical method:the first type is Cajanus cajan and Crotalaria mucronata,the best adaptability ,which can be used pioneer plant or constructive species; the second type is Cynodon dactylon,the better adaptability, which can be used constructive species ;the third type is Eragrostis curvula, Paspalam notatum,which can be used constructive species on rotten rock slope ; the forth type is kummerowia striata,Lotus corniculatus and Vitex negundo.The adaptability is centered,and can be used protection species and auxiliary species;the fifth type is Robinia pseudoacacia,Eremochloa ophiuroides,Vitex negundo,Lespedeza formosa,Leucaena leucocephala,Desmodium sequax, Rhus chinne- nsis,which can't be plant singly and be used accessory species;the sixth is Trifolium repens,which can be used pioneer plant.

根据评价边坡防护植物适应性的十个重要指标，首次运用隶属函数和聚类分析方法，对各供试植物的边坡适应性综合排序并分为六类：第一类为木豆和猪屎豆，边坡适应性最强，适宜作为先锋植物和建群种；第二类为狗牙根，边坡适应性强，适宜与豆科植物混播，作为建群种；第三类为弯叶画眉草和百喜草，边坡适应性较强，适宜与豆科植物混播，作为风化岩边坡的建群种；第四类为鸡眼草、百脉根和马棘，边坡适应性中等，适宜作为保护种与伴生种；第五类为刺槐、假俭草、荆条、美丽胡枝子、银合欢、波叶山蚂蝗和盐肤木，边坡适应性较差，不宜单独在边坡上种植，最好与速生型豆科草本混播，作为边坡防护植物群落的辅助植物；第六类为白三叶，边坡适应性最差，但因其出苗率高、生长速度快，作为先锋植物，起到前期覆盖坡面的作用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷