margalitic soils

Effects of soil moisture on nitrification activities of a Chinese Chao soil and a Japanese Andisol;

不同水分含量對潮土和火山灰土硝化動態的影響

This method was created by the researchers of Iwate University,Japan,in the paddy field reclamation(PFR) on the volcanic ash soil in early 1960s.

介紹日本早在６０年代初期火山灰土壤水田開發實踐中由巖手大學的研究者們創造和發展的“破碎碾壓工法”的基本原理及其應用，并對最近中國砂質土壤滲透抑制的室內外研究結果進行了簡單介紹，目的是為漏水性土壤地區水田開發以及土壤防滲工程措施提供借鑒。

It was adopted wet-guniting acrylate latex mortar technique in construction.

根據大壩首次安全定期檢查的意見,300#火山灰混凝土壩面需進行護面處理。

Characteristics or zero point of charge of volcanic ash soils in Changbaishan and Wudalianchi.

長白山和五大連池火山灰土壤電荷零點特性

A volcano belches smoke and ashes.

火山噴出黑煙和灰土。

portland pozzolan concrete

火山灰硅酸鹽水泥混凝土

Mounds of pumice and volcanic ash mark its center, where the volcano remains.

浮石和火山灰的土墩標志著它的中心，是火山的遺跡。

In terms of industrial type,burnt stone is a burnt clay mixed material of artificial volcanic ash.

工業類型為人工火山灰質燒粘土混合材。

Study on the Design and Construction Technology of Volcanic Ash Cement Concrete Pavement

火山灰水泥混凝土路面設計及施工技術研究

portland-pozzolana cement

火山灰質硅酸鹽水泥

ash that was thrown By an erupting volcano.

火山爆發噴到空中的灰

The volcano ejected lava and ashes .

火山噴出熔巖和灰。

The village was overwhelmed by ash from the volcano.

村子被火山灰覆蓋。

A volcano emits smoke and ashes.

火山散發著煙和灰。

volcanic ash and lava build the mountains that we call volcanoes.

火山灰和火山巖在噴射口堆積構成了火山。

Dense clouds of ash were generated during the volcanic eruption.

火山爆發時, 產生了濃密的火山灰云。

A volcano that vomited lava and ash.

噴出巖漿和火山灰的火山

Lava and ashes erupted from the volcano

熔巖和火山灰從火山中噴出來。

The volcano erupted lava and ashes

火山噴射出熔巖和火山灰。

an absorbent aluminum silicate clay formed from volcanic ash.

由火山灰形成的一種具有吸收能力的鋁硅酸鹽粘土。

So the Romans added a mix of 7)volcanic 8)cinders and clay called "Potsularna".

所以羅馬人又添加進一種火山灰與黏土的混合物，稱為"波修拉那"。