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- Structure of sedimentary rocks: bedding, cross bedding, mud cracks and ripples. 沉积岩的构造：层理、交错层理泥裂和波痕。
- Cross bedding of farming and animal husbandary 农牧交错带
- Agriculture and Animal Husbandry Cross Bedding 农牧交错带
- On the basis of analyzing high resolution sequence stratigraphy, the bed forms, facies diversity and reservoir heterogeneity were obviously with the ratio of accommodation and sediment supply, and the accretion of the cross beds. 馆陶组上段自下而上 ,由于可容纳空间和沉积物比值的增大 ,致使槽状交错层组和层系厚度向上增大 ,孔隙度、渗透率、保存下来的河道宽度、连续性和连通程度降低 ,而底形多样性、相的分异性、相的保存程度和非均质性增加。
- A concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- The major characteristics of this deposit are well-developed parallel beddings and cross beddings, with the deposit components of basaltic volcanic scoria and basal or wall-rock fragments. 其主要特征是发育完好的平行层理和交错层理，堆积物成分为玄武质火山渣与基底或围岩岩石碎屑共存。
- The brook warbled over its rocky bed. 小溪潺潺流过多石的河床。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
- Cross and angry words in family grate upon the ear. 不高兴与生气的话在一个家庭里令人不愉快。
- She rushed off to work leaving her bed unmade. 她匆忙去上班连床都没铺好。
- A mule is a cross between a horse and an ass. 骡是马和驴交配而生的杂种。
- The Red Cross dealt out food to hungry soldiers. 红十字会把食物分发给饥饿的士兵。
- A mosquito netting completely surrounds our bed. 一顶蚊帐把我们的床完全围住了。
- It was hard work getting the children off to bed. 哄孩子们去睡可不是容易的事。
- This cross marks the spot where she died. 这个十字符号标明她死去的地点。
- I threw off my clothes and tumbled into bed. 我脱掉衣服倒在床上便睡了。
- He made expiation for our sins on the cross. 他在十字架上为我们赎了罪。
- I usually go to bed at half past ten. 我通常十点半睡觉。
