alder造句

The microorganisms involved in symbiosis with the alder tree are actinomycetes of the genus Frankia.
而與赤楊共生的微生物是放線菌.

Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.
它的名字是本·亞爾德, 是一座盡是些山崗和雞谷的漠無(wú)人煙的荒山.

Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.
為了達(dá)到合成的目的,對(duì)Diels-Alder加 成物(56)和(62)加以改造的問(wèn)題很少有人考慮.

They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.
它們主要被用來(lái)催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反應(yīng).

Alder ( Alnus nepalensis ), an important non - legume nitrogen - fixing plant, occurs widely in the eastern Himalayas.
榿木 ( Alnusnepalensis ) 是一種重要的 非 豆科固氮植物, 廣泛分布于喜馬拉雅山脈東部地區(qū).

The meanders of a prattling brook, were shaded with straggling willows and alder trees.
一條小河蜿蜒掩映在稀疏的柳樹(shù)和榿樹(shù)的樹(shù)蔭間,淙淙作響.

Diels - Alder reaction of 2 - merhylene - 1 - pheny 1 - 1.3 - butanedione catalysed by zinc chloride as lewis acid with 1.3 - cylcopentadiene was reported.
以氯化鋅為路易斯酸催化劑,探討了2 ─ 亞甲基─1 ─ 苯基 ─ 1.3 ─ 丁二酮與1.3 ─ 環(huán)戊二烯的Diels─Alder反應(yīng).

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