查询词典 compressed wood

In order to study the effects of acid catalysts on wood liquefaction in phenol, the liquefaction of wood powder from Chinese fir and poplar in the presence of phenol using several relatively weak acids as catalysts, such as phosphoric acid (85%), sulfuric acid (36%), hydrochloric acid (37%) and oxalic acid (99%), were investigated.

为了探讨酸性催化剂对木材苯酚液化的影响，该研究采用磷酸(85%)、低浓硫酸(36%)、盐酸(37%)、草酸(99.5%)4种弱酸性无机酸，在不同温度下进行了木材的液化试验。

The optimum condition of PWF prepared fromliquefied wood is: actual pH of liquefied wood without extra acid, 105℃, 150min and 0.7～0.8of ratio of formaldehyde to phenol.

木材液化产物制备PWF的适宜工艺参数为：pH为木材液化产物的实际值，温度105℃，时间150min，n∶n=0.7～0.8。

While PEG-1000 had worst liquefaction effect; its liquefied wood had higher acid value and hydroxy value. Wood liquefaction condition would influence the properties of PU foam.

由其结果得知，以PEG-400为液化药剂者有较佳之液化效果，其残渣率较低，以PEG-1000液化者效果较差，其液化木材有较高的酸价及羟价。

The destructive distillation of wood to give methanol is the root of its common name - wood alcohol.

产出甲醇的木材分解蒸馏是甲醇普通名称的根源。

"Methyl alcohol wood alcohol Once produced by destructive distillation of wood, it is now usually made from the methane in natural gas."

曾经将木材进行破坏性的干馏来生产甲醇，现在通常用天然气中的甲烷来制

"Methyl alcohol wood alcohol Once produced by destructive distillation of wood , it is now usually made from the methane in natural gas."

曾经将木材进行破坏性的干馏来生产甲醇，现在通常用天然气中的甲烷来制取。

At the Museum of Wood Sculpture, you can see hundreds of examples of the Sanyi style of wood carving.

在木雕博物馆里，你可以看到无数充满三义风格的木雕作品。

True enough, according to what his coach has disclosed, Michael Phelps does "diagonal wood chopper" and "straight wood chopper".

的确，根据什么他的教练透露，迈克尔菲尔普斯是"角木菜刀"和"直木开刀"。

The chamberpot was woodfired, at HAP Pottery in Beijing, where I made it in July2001. The wood that was used is the same wood they make the Peking Duck with...!

此夜壶是我在二00一年七月在北京乐陶苑用柴烧制成的，所用的木亦是他们用来烧焗北京填鸭的。

One time, Wang Xi-zhi sketched in wood for an engraver to cut. Then the engraver found the ink had penetrated one centimeter into the wood.

有一次，王羲之在木板上刻字，后来刻字的人发现墨汁渗入木板有三尺深。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。