Thus , this reduced temperature of reaction and increased the rate of acetophenone.降低反应温度,提高了苯乙酮的收率.Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法....

Amphoteric monomer is prepared with acrylic acid , dimethylamine and chloroethanol by Mannich reaction.以丙烯酸、二甲胺、环氧氯丙烷为原料,通过曼尼希反应制得两性离子单体.Biological activities of amphoteric surfactants to higher or lower organisms were i...

Captain Watson this morning announced of a secret third ship in the Sea Shepherd flotilla.沃特森船长在今早宣称,“海洋守卫者”舰队将派出第三艘秘密船只.The shepherd tended a flock.这个牧羊人照管羊群。...a shepherd's crook.牧羊人的曲柄杖For three nights, the sheph...

n.脑磷脂...

GPS ephemeris data interpolation, using Lagrange, Newton's Law, which is good information!GPS星历内插资料, 分别采用拉格朗日, 牛顿法, 是不错的资料!Using the precise ephemeris and the precise satellite clock correction can realize precise p...

二苯茚二酮...

Vibrio vulnificus, a gram - negative halophilic marine bacterium, is an opportunistic human pathogen.创伤弧菌为栖息于海水环境中的革兰氏阴性细菌, 为人类的伺机性致病菌.Vibrio vulnificus is a halophilic, gram - negative associated with serious wound infe...

metabograph的音标：metabograph的英式发音音标为：[metə'bəɡrɑ:f]metabograph的美式发音音标为：[metə'bəɡrɑf]...

皮癣菌疹...

lymphotomy的音标：lymphotomy的英式发音音标为：[lɪm'fəʊtəmɪ]lymphotomy的美式发音音标为：[lɪm'foʊtəmɪ]...

amporphous的音标：amporphous的英式发音音标为：[æm'pɔ:fəs]amporphous的美式发音音标为：[æm'pɔfəs]...

n.微距电影摄影术（超近摄技术），放大电影摄影...

metaphorical的音标：metaphorical的英式发音音标为：[ˌmetə'fɒrɪkl]metaphorical的美式发音音标为：[ˌmetə'fɔrɪkl]...

chromophile的音标：chromophile的英式发音音标为：[k'rəʊməfɪl]chromophile的美式发音音标为：[k'roʊməfɪl]...

Their metaphor degenerates into a series of isolated and barren conceits.他们的隐喻变为一系列孤立而贫乏的牵强附会.Let us distinguish the various types of metaphor.让我们把各种隐喻分类。a game of football used as a metaphor for the competitive struggle...

aspherizing的音标：aspherizing的英式发音音标为：[æzfə'raɪzɪŋ]aspherizing的美式发音音标为：[æzfə'raɪzɪŋ]...

kophemia的音标：kophemia的英式发音音标为：[kəʊ'fi:mɪə]kophemia的美式发音音标为：[koʊ'fimɪr]...

Instant cacophony as the crowd inched forward step by step, coming, they're coming!紧跟着人声嘈乱起来,整群的人象机器似的一齐向前拥了一寸,又一寸, 来了! 来了!Perhaps he needs to remember, amid cacophony, that some of the best conductors are despots.或...

hemimorphite的音标：hemimorphite的英式发音音标为：[ˌhemɪ'mɔ:faɪt]hemimorphite的美式发音音标为：[ˌhemɪ'mɔfaɪt]...

皮肤划痕现象，划皮现象...

The series was based on the autobiographies of the author.这部连续剧是根据那位作家的自传拍摄的.There are some songs and, recently, a few autobiographies about peasant experience.有些歌曲描述了农民的经验, 最近还出了几本自传.Not so much The Da Vinci Code, but F...

emphatic的近义词/同义词有：stressed, pointed, accentuated, emphasized, accented, punctuated, outstanding, noticeable, conspicuous, prominent, bold, eminent, compelling, distinct, manifest, impressive, vivid, striking, strong, veh...

[医] 裸头绦虫属...

氯苯胺灵...

n.劫数难逃论，灾变说...

I believe he seriously thinks me an awful Philistine.我相信,他真的认为我是个不可救药的庸人.David lived in Philistine territory a year and four months.7大卫在非利士地住了一年零四个月.The philistine attitude of the public resulted in the work being abando...

hypersphyxia的音标：hypersphyxia的英式发音音标为：['haɪpəsfɪksɪə]hypersphyxia的美式发音音标为：['haɪpəsfɪksɪr]...

electrocardiography的音标：electrocardiography的英式发音音标为：[elektrəʊ'kɑ:dɪəʊɡrəfɪ]electrocardiography的美式发音音标为：[elektroʊ'kɑdɪəʊɡrəfɪ]...

answer the phone的音标：answer the phone的英式发音音标为：['ɑ:nsə ðə fəun]answer the phone的美式发音音标为：['ænsɚ ði fon]...

As to prophecies, intelligent writers gave them up long ago.至于预言书, 明智的作家们早就将它们摒弃了.Most prophecies soon smell of their own time; this one has come true.过去的预言作品大多跟着时代成为过去, 只有这一部可真的应验了.They are the basis of unconditional pr...