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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. 贵州紫云长兴期生物礁顶部存在的出露证据有：（1）形成于萨勃哈蒸发环境的白云岩，（2）藻纹层沉积，（3）鸟眼和窗格构造，（4）干裂缝和褐铁矿风化壳，等等。
- Algal blooms, heavy growth of aquatic plants, algal mats and deoxygenation are common symptoms of eutrophication. 水藻滋生、水生植物大量生长、藻类杂生以及水中游离氧的减少都是富养化的基本特征。
- Father bought a new welcome mat for our new house. 爸爸为我们的新房子买了一个擦鞋垫。
- I wiped my shoes on the mat before I came in. 我在进门前把鞋在垫子上擦了擦。
- There are some clods of soil on the mat. 垫子上有些土块。
- The force of his fall was broken by the straw mat. 草垫的缓冲作用减弱了他下跌的力量。
- Be careful you don't trip (up) on the mat. 小心别在地席上绊倒了。
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
- Our welcome mat is always out to our friends. 对于朋友，我们总是热烈欢迎。
- He lifted the mat and slid the key under (it). 他掀起垫子把钥匙悄悄放在下面。
- algal mat blister 藻席小丘
- algal mat 藻席
- A mat placed before a doorway for wiping the shoes. 门毯，门垫放在门口用于擦鞋底的垫子
- He wiped his dirty boots on the mat before entering the room. 他在进屋前把脏靴子在门垫子上擦了擦。
- Scrape your shoes on the door mat before you come in. 进屋前先在门口擦鞋垫上擦一擦鞋子。
- Long term problems with pollution has made Japanese scientists leading authorities on algal blooms. 长期的污染问题使日本科学家在研究海藻过剩方面居世界领先水平。
- Clean your shoes on the mat, or you'll muck up the floor. 把鞋子在蹭鞋垫上擦干净，否则你会把地板弄脏的。
- The child toddled along quite nicely until he fell over the mat. 那孩子在席子上摔倒之前，蹒跚学步走得满像样的。
- Chlorine may be added to eliminate algal growth. 也可以加入氯以排除藻类的生长。
- The warm conditions encouraged algal blooms. 温暖的气候条件适合藻类生长。
