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- Evidence of emergence including sabkha dolostone, algal mat, bird-eyes and fenestral structure, mudcracks and crustose limonite has been found in the top of the Changhsingian reefs in Ziyun, Guizhou province. 貴州紫云長(cháng)興期生物礁頂部存在的出露證據有：（1）形成于薩勃哈蒸發(fā)環(huán)境的白云巖，（2）藻紋層沉積，（3）鳥(niǎo)眼和窗格構造，（4）干裂縫和褐鐵礦風(fēng)化殼，等等。
- Algal blooms, heavy growth of aquatic plants, algal mats and deoxygenation are common symptoms of eutrophication. 水藻滋生、水生植物大量生長(cháng)、藻類(lèi)雜生以及水中游離氧的減少都是富養化的基本特征。
- Father bought a new welcome mat for our new house. 爸爸為我們的新房子買(mǎi)了一個(gè)擦鞋墊。
- I wiped my shoes on the mat before I came in. 我在進(jìn)門(mén)前把鞋在墊子上擦了擦。
- There are some clods of soil on the mat. 墊子上有些土塊。
- The force of his fall was broken by the straw mat. 草墊的緩沖作用減弱了他下跌的力量。
- Be careful you don't trip (up) on the mat. 小心別在地席上絆倒了。
- A coal fell from the fire and burned the mat. 一塊煤炭從火中掉出來(lái)，燒壞了地席。
- Our welcome mat is always out to our friends. 對于朋友，我們總是熱烈歡迎。
- He lifted the mat and slid the key under (it). 他掀起墊子把鑰匙悄悄放在下面。
- algal mat blister 藻席小丘
- algal mat 藻席
- A mat placed before a doorway for wiping the shoes. 門(mén)毯，門(mén)墊放在門(mén)口用于擦鞋底的墊子
- Water is the core of a healthy ecosystem. 水是維持生態(tài)系統良性循環(huán)的根本。
- He wiped his dirty boots on the mat before entering the room. 他在進(jìn)屋前把臟靴子在門(mén)墊子上擦了擦。
- Bloom A sudden growth of microorganisms in a freshwater or marine ecosystem, often known as an algal bloom. 水華：淡水或海洋生態(tài)系統中微生物迅速增長(cháng)的現象，例如藻類(lèi)造成的水華。
- Scrape your shoes on the door mat before you come in. 進(jìn)屋前先在門(mén)口擦鞋墊上擦一擦鞋子。
- Does potting plants means treasuring ecosystem? 家養花草就是愛(ài)護生態(tài)嗎?
- Clean your shoes on the mat, or you'll muck up the floor. 把鞋子在蹭鞋墊上擦干凈，否則你會(huì )把地板弄臟的。
- Long term problems with pollution has made Japanese scientists leading authorities on algal blooms. 長(cháng)期的污染問(wèn)題使日本科學(xué)家在研究海藻過(guò)剩方面居世界領(lǐng)先水平。
