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This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
A new type of water-injected cylindrical hydrocyclone with two layers of cone is deve-loped and the effects of the cone angle matching on the classification perfomance are studied. 研制了一种新型的具有双层锥底的加冲洗水圆柱型旋流器；对锥角的搭配与分级行为的影响作了探讨。
The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
A layer of skin peeled off her sun-burnt back. 她晒黑的背上掉了一层皮。
There are several layers of meaning. 有几层不同的含意。
The altitude of the lowest layer of clouds. 云幕高度最低层云的海拔高度
This cake has a layer of chocolate in the middle. 这蛋糕中间有一层巧克力。
The growth of successive layers of a cell wall. 敷着，附着细胞壁连续层的生长
The grind is covered in a pristine layer of snow. 地上覆盖著一层皑皑积雪。
This seam of coal reposes on a layer of clay. 这个煤层处于一层黏土岩之上。
A layer of mortar upon which stones or bricks are laid. 灰浆层一层铺放石头或砖的砂浆层
layer of cones 锥(体)层
Unequal shifting of cone drum belt while the formation of roving layers. 粗纱铁炮皮带移动不灵活。
The ground was covered in a pristine layer of snow. 地上覆盖着一层皑皑积雪.
The flood deposited a layer of mud in the street . 洪水过后，街道上积了一层泥。
And the result showed that eggshell intensity could be relative with the thickness of shell membrane,fibers of shell membrane,spacing of cone layer and cranny of cover. 同时研究结果表明,鸡蛋壳强度的大小可能与壳膜层壳膜的厚度,壳膜纤维的粗细,锥体层乳头间的空隙大小以及覆盖层上裂隙的深浅和数量有关。