alder

alder是什么意思，alder的意思中文翻译、音标及例句等。

音标/读音:英 ['ɔːldə]美 ['ɔldɚ]

alder意思翻译-n. [林] 桤木

n. [林] 桤木

复数: alders

TOEFL

单词解说

alder 桤木

来自PIE *el, 树名。

alder的例句及中文翻译

Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.

为了达到合成的目的,对Diels-Alder加 成物(56)和(62)加以改造的问题很少有人考虑.

Diels — Alder reaction is one of the important research content in the fields of organic chemistry.

Diels—Alder反应是目前有机化学领域重要研究内容之一.

Activated olefinic bond Amine, thiol radical initiator, cationic initiator, dienes ( Diels - alder reactive ).

活性烯键胺, 巯基,引发剂, 阳离子引发剂, 烯烃 ( 的Diels-Alder反应 ).

They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.

它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应.

Diels - Alder reaction of 2 - merhylene - 1 - pheny 1 - 3 - butanedione catalysed by zinc chloride as lewis acid with 3 - cylcopentadiene was reported.

以氯化锌为路易斯酸催化剂,探讨了2 ─ 亚甲基─1 ─ 苯基 ─ 3 ─ 丁二酮与3 ─ 环戊二烯的Diels─Alder反应.

The meanders of a prattling brook, were shaded with straggling willows and alder trees.

一条小河蜿蜒掩映在稀疏的柳树和桤树的树荫间,淙淙作响.

Material: Gold Plated Alder Cone, gold plated bookmark.

素材: 镀金桤木球果吊饰, 镀金书签.

Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.

它的名字是本·亚尔德, 是一座尽是些山岗和鸡谷的漠无人烟的荒山.

The microorganisms involved in symbiosis with the alder tree are actinomycetes of the genus Frankia.

而与赤杨共生的微生物是放线菌.

The alder nitrogen fixation promoted growth of the after crop.

十年生桤木林采伐迹地上,桤木固氮改良土壤,并促进后续植物的生长.

Diels — Alder reaction is one of the important research content in the fields of organic chemistry.

Diels—Alder反应是目前有机化学领域重要研究内容之一.

Material: Gold Plated Alder Cone, Green Chorite Crystal, gold plated bookmark.

素材: 镀金桤木球果吊饰, 绿幽灵水晶, 镀金书签.

Alder has no problems with sap , mineral streaks, dark colors or staining.

桤木边材, 矿物线, 颜色变深或色变都没有问题.

When they reach the destination, Alder stopped the car and let her go down.

到了那个女生所说的地方时, 阿德就停车好让她下车了.

The genetic responses of 13 alder ( Alnus cremastogyne ) provenances was evaluated for at 5 test locations.

对桤木13个种源在5个测试点进行了生长性状的遗传测定.

Alder trees belong to the birch family.

赤杨属于桦木科.

The tiniest unfurling of pale green at the tips of the alder trees'branches.

赤杨树的树梢泛着隐隐约约的绿.

Suddenly, Alder think of the girl haven't paid him the taxi fare.

阿德突然想起还未向那位女生收钱,不反过头还好.

alder是什么意思-n. [林] 桤木

alder是什么意思由英汉词典整理修订，时间:2023-08-09 19:38