The thickness of this sheet sandstone is related directly to rate of regression and the amount of sand available.
这种席状砂岩的厚度直接取决于海退速率以及砂质供给量。
Channel and Sheet sand are sweet reservoir. Distribution of sand is controlled by provenance distance and palaeogeomorphology.
分流河道和席状砂为有利储层，砂体展布形态主要受控于物源远近及古地貌形态。
The built patterns include distributary channel, transition and front sheet sand types, which based on closely spaced Wells and core data.
利用密井网和岩心资料，建立了厚油层内部相结构模式：分流河道型、过渡型、席状砂型。
In loess hilly gully region covered by sheet sand, soil water erosion process is different from typical loess hilly gully region because of worse natural environment and loose land surface material.
在片沙覆盖的黄土丘陵区，由于恶劣的自然环境及松散的地表组成物质，土壤的水蚀过程明显地不同于典型的黄土丘陵区。
Then we laid down sheets with electric pads on top of them, then another sheet on top of that, then the sand on top of the that, so the sand covered an area of about three feet.
我们在床单上垫了一层电热垫，再垫上一层床单，最后把沙子辅在最上层，这样沙子总共覆盖了大约3英尺。
The main reservoir rock is water channel, then the sand sheet, others are less.
主要储集砂体为水道砂体，其次为席状砂体，其它砂体较少。
Relationship between sedimentary facies and hydrocarbon distribution shows that most favorable oil and gas accumulation zones occur in the mouth bar, distal bar and sand sheet.
该区沉积相与油气分布关系分析表明，河口坝、远砂坝和席状砂微相是最有利的油气聚集带。
Mechanical graining: Mechanically roughening the surface of a metal sheet by means of abrasive powders, sand bursting, etc, for use as an offset plate.
机械磨版：用磨擦粉剂，喷沙等机械方法把金属片的表面造成粗糙，适合为柯式印刷。
Mechanical graining: Mechanically roughening the surface of a metal sheet by means of abrasive powders, sand bursting, etc, for use as an offset plate.
机械磨版：用磨擦粉剂，喷沙等机械方法把金属片的表面造成粗糙，适合为柯式印刷。
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