剧毒的

Benzoin condensation reaction is usually promoted by toxic cyanide ion, so the development of more convenient and efficient synthetic methods, which is environmental benign, is highly desired.

传统上，苯偶姻通过使用剧毒的氰化钠或氰化钾催化安息香缩合反应而得，所以苯偶姻的简单高效和对环境无污染的制备方法很有意义。

The round trip flow time is cut short from two hours to ten minutes and the method adopts silver nitrate-bismuth nitrate united screening method to eliminate the disturb of chorine ion instead of strenuous noxious mercury sulfuric.

本方法适当提高硫酸浓度，强化了重铬酸钾的氧化效率，使回流时间由 2h缩短到 10min ；并且用硝酸银和硝酸铋联合掩蔽法能消除氯离子的干扰，代替剧毒的硫酸汞。

However bad is, this is one contains virulent spider, it bit her, bring about her one part leg by amputation. After 12 years, she still does not know this only poisonous spider is me on the bed that put her. My compunctious feeling is tormenting me everyday.

然而糟糕的是，这是一只带有剧毒的蜘蛛，它咬了她，导致她一部分腿被截肢。12年后，她依然不知道这只毒蜘蛛是我放到了她的床上。

The synthetic route is complex, the technical line is long, and after many steps the yield is low with high cost, particularly in this method seriously poisonous substance hydrocyanic acid is used as raw material, the treatment of numerous waste acids is difficult and the environment pollution is obviously.

该方法采用剧毒的氢氰酸为原料，产生大量难于处理的废酸，环境污染严重，因此开发新的MMA工艺路线很有必要。

Suitable to convey clean inflammable, explosive, severely poisonous fluids, and other tluids which permit no seal pollution, li is applied to high -pressure water flooding .conveying water or oil within far distance, butadiene rubber, adding hydrogen refining, platina heavy speed insiallation, etc.

适宜输送不含固体颗粒的易燃、易爆、剧毒的介质和其它要求无泄漏及不允许密封污染的介质。广泛地应用于油田增压注水，高中压远距离输水，输油，高层建筑供水，顺丁橡胶，加氢精制及铂重速装置等。

I use an example quoted by Hu Jiaqi:"It is reported that America separates the DNA of a kind of virus by making use of genetic technology and combines it with another kind of DNA. Finally, they get a kind of virulent biological agent called a "pyrotoxin". Someone discloses in private that 20 grams of such a kind of biological agent could result in the global death of 6 billion people due to infection."

我在这里例举胡家奇所引用过的例子："据报道，美国利用转基因技术，将一种病毒的DNA分离出来，与另外一种DNA进行结合，拼结成一种剧毒的"热毒素"生物战剂，且私下有人透露，这种生物战剂只需20克，就可以导致全球60亿人全部感染死亡。"

"One wonder s also why Nature, with some snakes concocted poison of such extreme potency."

人们还迷惑不解的是：大自然为什么赐予某些蛇这种剧毒的毒液呢？

Many plants and flowers are beautiful to look at, but can be highly toxic if ingested by your dog.

很多中植物和花卉虽然漂亮，但是对我们的爱犬来说是剧毒的。

Because of its nonpoisonous, DMC can substitute phosgene , dimethyl sulfate or methylating used as methyl pharmaceutical to improve the security of production and reduce the environmental pollution; As the solvent, DMC can substitute fluorine lyons , methyl chloroform , trichloroethylene , benzene , dimethylbenzene, etc.. And it can be used as the paint dope, clean solvent. As gasoline additive, DMC can raise hard octane value and oxygen content and improve its antiknock possibility.

由于DMC无毒，可替代剧毒的光气、硫酸二甲酯等作为甲基化剂或羰基化剂使用，提高生产操作的安全性，降低环境污染；作为溶剂，DMC可替代氟里昂、三氯乙烷、三氯乙烯、苯、二甲苯等用于油漆涂料、清洁溶剂等；作为汽油添加剂，DMC可提高其辛烷值和含氧量，进而提高其抗爆性。

Any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers.

多种身体细长多刺并可以吸入水或空气将自己胀成球形的海生鱼；几种有剧毒的海鱼；与多刺河豚关系密切。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。