丁基

In this thesis, the method of the synthesis of the common intermediate compoundof this style has been further studied. It is confirmed a procedure for esterifying the alanine.

本论文对该类化合物的常用中间体(1)的合成方法进行了改进性试验，避免了使用苄酯或叔丁基酯进行丙氨酸酯化，减少了反应的复杂性，简化了后处理方法。

It remains to be confirmed that waterborne tributyltin,similar to Hg~(2+),Cd~(2+) and Mn~(2+),can enter nerves innervating water-exposed sensory organs of fish and were transported to the brain by axonal transport .

为证实水中三丁基锡是否与Hg2+，Cd2+与Mn2+等离子相类似，即由鱼的感觉器官进入神经系统，再经过轴突传递进入大脑。

Tributyltin compounds found in some antifouling paint on ship hulls leaches into seawater and is toxic to marine organisms and humans; efforts are underway to restrict its use.

在一些船体的防污涂料中发现了三丁基锡（Tributyltin： TBT）合成物，还滤入海水中，这些物质对海洋生物和人类都是有毒的，努力严格控制这些合成物的使用。

The state of the art on fuel oxygenates, and in particular of MTBE in groundwater, is presented.

国家艺术燃料含氧化合物，特别是地下水中甲基叔丁基醚，是。

However, due to the side-effect to environment and human health, MTBE will be banned in United States and replaced by other less harmful oxygenates. So, it is necessary to find the substitute of MTBE.

但是，近几年，因其对人体及环境的负面影响，在美国有被禁用的趋势，因此，有必要寻找甲基叔丁基醚的替代品。

Historically, oxygenates like MTBE were developed in the 1970s as octane enhancers to replace toxic additives like lead, which were phased out of gasoline.

从历史上看，甲基叔丁基醚含氧化合物一样制定了在20世纪70年代的辛烷值促进剂，以取代有毒添加剂，如铅，这是逐步淘汰汽油。

The sample was extracted by deionized water. The extract was cleaned up and concentrated on a SPE column, then eluted by methyl-tert-butyl ether. The elution was concentrated under nitrogen and redissolved to 1 mL.

样品中24种目标物用蒸馏水浸出后，经固相萃取小柱富集净化，再用叔丁基甲醚洗脱，洗脱液氮吹浓缩定容后用气相色谱－质谱法测定。

Zanies Tug-n-Squeak Buddies toys for dogs are loads of fun for any dog!

Zanies拔河丁基佳乐个朋友狗玩具的乐趣负载任何狗！

Zanies Tug-n-Squeak Buddies toys for dogs are loads of fun for any dog!

Zanies拔河丁基佳乐箱玩具犬负荷的乐趣任何狗！

Zanies Tug-n-Squeak Buddies extra long appendages stretch to a full 30 inches to add extra fun to games of tug, and give dogs plenty of limbs to chew and pull.

Zanies宴请丁基佳乐个朋友额外附加的一段长30英寸全向添加额外的乐趣，拔河比赛，并给予足够的四肢犬咀嚼和拉。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。