B horizon

B horizon的基本解释

-

B层

与B horizon相关的网络例句 [注：此内容来源于网络，仅供参考]

Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and,or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron,aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil.

传统上可将土壤分成A、B、C三层。A层是位於最上面的一层，含有腐殖质，许多矿物质在该层中沥滤和淋溶。B层是个沉积区，富集了大量的来自A层的粘土矿物质和铁，铝氧化物。C层是现在土壤的母质层，也可能是风化的岩石、来自冰河或冲积层的物质、或早期土壤遗留下来的。

A hardened soil horizon, usually in the middle or lower part of a soil profile, A hardpen is typical of PODSOLS, where iron compounds leached from the upper layers accumulate in the B horizon, staining it red-brown and forming an impermeable layer that can prevent drainage, resulting the in waterlogging of higher horizons.

硬质地层是一种典型的灰壤，其中铁的化合物从上层土壤中渗出，在 B 层中聚集，使得土壤呈现棕红色，构成了极难透过水的土层，这种地层的存在使上层的土层更易发生水涝。

It indicates that the fluoride source is mainly from clay used as a binder, the fluoride level in B horizon is high.

氟源主要是拌煤粘土，其含氟量一般很高。

Start off9. Take this course, and it will broaden your ___ .A. horizon B. capability C. foresight D. maturity10. In my opinion this painting is ___ good.

听的时侯最好按题号的顺序去看那些选择项，因为第一题的答案可能就在第一小段里。

Horizon B, the subsoil, contains materials washed down from above and may be mottled with various colors depending on the iron compounds present.

B 水平层，是亚土层，内含从上层冲刷下来的物质，而且这些物质因为含铁量不同会呈现出斑驳的色彩。

与B horizon相关的网络解释 [注：此内容来源于网络，仅供参考]

illuvial horizon b：层

illusion 错觉 | illuvial horizon b层 | ilness 疾病

illuvial horizon b：层,淀积层

illuminating gas 可燃气体 | illuvial horizon B层,淀积层 | illuvial soil 淀积土

horizon b：淀积层

horizon 层 | horizon b 淀积层 | horizon refraction 水平折射

tillage doesn't reach the B horizon：耕不到B层土

tillage crop ==> 中耕作物 | tillage doesn't reach the B horizon ==> 耕不到B层土 | tillage equipment ==> 耕作设备