It's completely ruined, so we'll have to start from scratch.

它完全毁了, 我们只好从头做起。

Six series of aryloxy pyridazines derivatives have been synthesized starting from 3,6 dichloro pyradizine.

以3,6-二氯哒嗪为原料,合成了6类芳氧基哒嗪类衍生物,研究了它们的合成方法,并测定了所得产物的除草活性。

Starting from 2004, we have been successfully held EXITE camps in GCG for 4 years.

自从2004，我们已经成功在中国区（GCG）举办了4届夏令营。

P-methoxybenzeneacetonitrile was prepared in 34. 8% yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation.

以苯甲醚为原料,经过氯甲基化,氰化反应后,通过精馏获得对甲氧基苯乙腈,总收率为34.8%。

Not all cell phone companies believe that a design for nonliterate users should start from scratch.

并非所有行动电话公司都认为，供文盲使用的设计必须从零开始。

The announcer gave out that the 3:30 train to Manchester would start from Platform 4.

三点三十分开往曼彻斯特的火车将从4号站台发车。

The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

概述了4-羟基香豆素的合成方法，重点介绍了苯酚法，乙酰水杨酸法，水杨酸甲酯法，邻羟基苯乙酮法。

In this paper, synthesis of salidroside was reported starting from 4 hydroxyl phenylacetic acid through benzylation, esterification, reduction and glycosidation.

报道了以对羟基苯乙酸为原料,经过苄基化、酯化、还原、甙化等步骤合成红景天甙的一种方法.

This dissertation starts from the historical origin of china's traditional mascot and modern mascot and probes into the symbolics meaning of the Olympic Mascot.

本文从中国民间传统吉祥物与现代吉祥物的历史渊源出发,探讨奥运吉祥物设计的象征意义。

A process for the preparation of anticholinergic drug Cyclopentolate Hydrochloride by two-step sequence starting from sodium Phenylacetate in about 50% total - yield was reported.

探索抗胆碱药盐酸环喷托酯的合成工艺。该工艺以苯乙酸钠为原料,经两步化学反应得到目标产品,总产率约50％。