例句與造句

1. Carotenoids can make chla return from excited state to ground state by direct or un - direct quenching , in order to prevent algae from photooxidation . on the other hand , it was indicated that polysaccharides have functions in resisting uv . spirulina plalensis can accumulate both cellular and extracellular polysaccharides during uv treatment , it showed highest uv resistant ability ; nanochloropsis sp also can accumulate cellular polysaccharides , while extracellular polysaccharides reduced ; the cellular polysaccharides content of phaeocystis globosa scherffel decreased and extracellular polysaccharides content did not increased markedly , showing lowest uv resistant ability
   鈍頂螺旋藻和微綠球藻中在較低的uv輻射強(qiáng)度下類胡蘿卜素含量升高，而葉綠素a保持相對(duì)穩(wěn)定，說(shuō)明類胡蘿卜素可能對(duì)藻類起到一定保護(hù)作用，可能通過(guò)直接的或間接的方式猝滅激發(fā)態(tài)的葉綠素，來(lái)保障光合作用的進(jìn)行；本實(shí)驗(yàn)發(fā)現(xiàn)多糖的累積和分泌與藻體的抗uv能力有相關(guān)，鈍頂螺旋藻的細(xì)胞內(nèi)和細(xì)胞外多糖分泌旺盛，其抗uv能力最強(qiáng)；微綠球藻體內(nèi)能積累多糖，而胞外多糖分泌減少；球形棕囊藻的胞內(nèi)多糖含量減少，胞外多糖含量增加也不明顯，其抗uv能力最弱。
2. It's difficult to find direct quench in a sentence. 用direct quench造句挺難的