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Consistently satisfactory heterogenous graft material still is not commercially aailable, and its use is not recommended.

疗效稳定的异种骨移植材料还未见市售，也不提倡使用。

One of the least publicized risks of infant formula is inescapably inherent in the consumption of any commercially prepared and mass-marketed food product: between 1982 and 1994 alone, there were twenty-two significant recalls of infant formula in the United States due to health and safety problems.

关于婴儿配方奶，极少被公开的风险之一就是：它与任何批量制造的商业化食品共同拥有的不可避免的内在特性。

In chapter 2 of this dissertation, a highly efficient synthesis of the title compound: 1-methyl-2, 3, 3a, 4, 5, 9b-hexahydro-1H-pyrrolo [3, 2-h] isoquinoline (157), a conformationally constrained nicotine analog, has been accomplished in only seven steps starting from commercially available 3-bromopyridine.

在第二章中，我们对具有刚性构象的尼古丁类似物的合成进行了研究。医学研究表明，尼古丁及其类似物对许多神经系统类疾病具有很好的治疗效果，而且药理活性与分子的构象有着非常密切的关系，许多具有刚性构象的分子有着很强的药理活性。

In this thesis, we describe a facile and economical synthesis of-abscisic acid from keto-isophorone and 3-butyn-2-ol through ketalization, oxidization, Witting-Horner reaction, reduction with chromium sulfate and other steps in 13% total yields. Compared to the previous routes, the starting materials are more commercially available and cheaper and the synthetic process is more easily controlled in our method, but the yield of this route is still to be improved.As to isostere principle, cyclopropyl and methyl vinyl are a couple of isostere.

本论文设计并完成了一条全新的外消旋脱落酸(1)全合成路线，从廉价的工业原料氧化异佛尔酮和丁炔醇出发，经过缩酮化反应、氧化反应、Wittig-Horner反应、CrSO_4选择性还原反应以及水解等七步反应实现了脱落酸的全合成，总产率达13％，与以往路线相比，该路线所用试剂廉价、合成路线简单，但产率有待提高。

Kreis Test This was one of the first tests used commercially to evaluate oxidation of fats.

克赖斯三碳不饱和醛试验这是商业上最早用于测量脂肪氧化的试验之一。

Running a business non-commercially is a recipe for huge losses rather than world domination: look at the history of France's Crédit Lyonnais or China's state-owned banks.

不以商业利润目的，迎来的多半是巨额亏损而不会是统治世界：可以研究一下法国的里昂信贷和中国国有银行的历史。

Running a business non-commercially is a recipe for huge losses rather than world domination: look at the history of France's Crédit Lyonnais or China's state-owned banks.

以非盈利为目的来经营公司，实际上是为巨额亏损寻找补偿，而不是称霸世界：这可以从法国的里昂信贷银行和中国国有银行的历史中看出。

Micromeritics was the first company to market commercially automated surface area, mercury penetration, and sedimentation particle size analyzers.

美国麦克仪器公司是世界上第一家将自动表面积分析仪，压汞仪以及沉降式粒度分析仪投放市场的公司。

Omphacite jade or omphacitic jadeite jade, commercially named Inky Black Jade, is a virtually monomineralic rock composed of more than 90% omphacite .

绿辉石玉或绿辉石质翡翠是由 90 %以上的绿辉石组成的基本上为一种单一矿物的玉石，其颜色为墨绿色，透明度高，商业上俗称墨翠。

However, even commercially distributed species such as the mopane caterpillar are harvested from wild insect populations, meaning that they are subject to year-to-year fluctuations and problems of overharvesting.

但是，由于是从可乐豆木上捕捉的野生产物，就算是已经商业化的可乐豆木毛虫，还是受到年度产量波动和过度采捕的制约。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。