the fossils were embedded in sand and gravel that were likely laid down by a river.
这块化石嵌在了可能是某条河流所沉积的沙和砾石之中。
only 300 metres to go but it「s a pile of gravel too far.
只剩300米的路程,但是那一堆的砾石使这道路显得那么漫长。
the prospector panned off bits of sand and gravel scooped from the bed of a stream.
探矿者淘选从河床中挖出的少量含金泥砂和沙砾。
these materials will be mixed with lunar soil and gravel to make concrete.
这些材料将与月球土壤和碎石混合做成混凝土。
the path is straight as ever, but now it is strewn with the rocks and gravel that accumulate over a lifetime.
确实,这条轨迹还是跟曾经一样:笔直!然而现在它却铺满了岁月的碎石。
the water is infiltrating the gravel bed.
水正渗透进碎石底层。
they scoop up insects and larvae, shellfish, and worms in their bill along with bits of gravel and mud from the bottom.
它把昆虫和幼虫、贝类动物以及蠕虫连同底下的碎石和泥土一起兜到嘴里。
newly designed giant gravel batteries could be the solution to the on-off nature of wind turbines and solar panels.
最新设计的巨型砂砾蓄电机组将为风力涡轮机和太阳能电池板的开关带来解决方案。
at the conclusion of our excursion, we descended into the valley of shangri-la only to see a huge gravel quarry (supporting the new road construction) located adjacent to an expansive wetlands.
在我们游览结束之时,我们下到香格里拉峡谷中,不想却看到一个巨大的砾石采石场(用于新公路施工)就坐落在一片辽阔的湿地附近。
the whole thing started in 1912 when charles dawson claimed to find some interesting bones in a gravel pit.
整个故事开始于1912年,当时,查尔斯·道森声称在一个砾石坑中发现了一些有趣的骨头。
we dug our pans into black sand and gravel and began swirling and sifting until only a large tablespoon」s worth of material was left.
我们在采金锅里装进黑色的沙土和砾石,开始不断的摇动和筛选,最后只剩下一汤匙那么多的东西。
through this door one does not find an entrance, but rather another wall, blank, but carved this time, bordered by a white gravel path.
通过这道墻人们并不能找到入口,而是另一堵墻空白但被雕刻的墻体,一条砾石小径将人们引导而入。
an unremarkable shrub on the gravel plain moved and resolved into an ostrich.
砾石地上一棵不起眼的灌木动了起来,而后变成了一只鸵鸟。
isentropic claims a round-trip energy efficiency of up to 80% and, because gravel is cheap, the cost of a system per kilowatt-hour of storage would be between $10 and $55.
伊森特洛匹克声称,一个能量发、放循环的能源效率高达80%,因为砂砾价格便宜,这种装置每千瓦时的成本约为10至55美元。
for nearly three hours, weber picked out gravel and debris from the woman's hair and emptied buckets of muddied rinse water.
她用了整整三个小时把这位女子头发中的碎石和杂物捡出来, 换掉了一桶又一桶的混浊的水。