Under the condition of the butyraldehyde 50 mL, the oxygen flow 90 mL/ min, reaction time 6 h, catalyst 0.6 g, reaction temperature 50 ℃. The yield of butanoic acid was 95.8%.

And some characteristics of aroma components of kiwifruit were detected such as ethyl acetate; butanoic acid, ethyl ester and hexanoic acid, ethyl ester etc.

此外，还检测出乙酸乙酯、丁酸乙酯、己酸乙酯等猕猴桃特征香气成分。

Effect of 2-hydroxy-4-( methythio) Butanoic Acid on Performance, Egg Quality, Nutrient Utilization and Serum Bio-parameters in Laying Hens

液体蛋氨酸羟基类似物对蛋鸡生产性能、鸡蛋品质、养分利用率和血液生化指标的影响

Compared with other groups, there were relatively lower levels of phosphoric acid and tryptophan in HCC serum, and higher levels of butanoic acid and 3-hydroxybutyrate.

肝癌患者血清中磷酸和色氨酸等代谢物含量较其它各组明显降低，而丁酸和3-羟基丁酸的含量明显升高。

Identification of 2,2-Dimethyl Butanoic Acid by MS

2,2-二甲基丁酸的质谱鉴定

Progress in the synthesis of 4-( 2-methyl-4-chlorophenoxy) butanoic acid chlorination process

4-（2-甲-4-氯苯氧基）丁酸氯化工艺改进&水相氯化法

Preparation of Crotonic Acid and Butanoic Acid with Polystyrene Supported Schiff Base Cobalt Complex by Catalytic Oxidation

聚苯乙烯固载希夫碱钴金属配合物催化氧化制备巴豆酸和正丁酸

Studies on Extraction of butanoic acid with TBP in octane

TBP-正辛烷溶液萃取正丁酸的研究

And yet forgives the butcher's knife

亦原谅了屠夫的利刃

He died because his tongue had been cut out by his own butcher's knife.

他的舌头被自己的屠刀割下来，然后就死了。

He took out a butcher's knife.

他拿出了一把杀猪刀。

The butcher's knife cut cleanly through the meat.

屠夫的刀利落地切着肉。

Lay down butcher's knife in your hand quickly!

快放下你们手中的屠刀吧！

In the damn bushes with a butcher knife ready to kill a bitch.

带着一把宰牛刀等在灌木丛里，打算干掉这个女人。

He comes into my house in the middle of the night with a butcher knife.

如果半夜有人带着屠刀闯进我的家里。

There were a man's clothes, an old tin lantern, a butcher knife, and some candles.

还有一些男人的衣物、一盏旧的锡制灯笼、一把屠刀和几根蜡烛。

Butcherbird of northern North American.

产于北美洲北部的伯劳鸟。

His father taught him all about butchery.

他的父亲传授他关于屠宰业的一切。

Cleanliness is essential in all butchery operations.

在屠宰业的所有操作中，干净是非常重要的。

And some, in any event, are too big to use for butchery.

而且它们中的一些，无论用在屠宰什么动物上，都太大了点。

Determination of Cattle and Sheep's Butchery Waste Composition and Fermentation Experiment

牛羊屠宰厂废弃物组成检测和发酵试验