Product triphen in GLP is light hydrocarbon aromatization technique in A petrochemical field.液化气芳构化生产三苯工艺,属于石化领域轻烃芳构化技术.The coking and deactivation of virgin naphtha aromatization catalyst are studied on isothermal react...
“ 不客气, ” 他说, 嗓音因激动而哽咽了." You're welcome, " he said, his voice choked with emotion.她的声音因为情绪而哽咽,他几乎听不懂她在说什么.Her voice was so choked with emotion he could hardly understand her....
今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。A Delta II rocket was launched from Cape Canaveral early this morning.他们绕过合恩角时，暴风雨已经减弱。The storms had abated by the time they rounded Cape Horn.这块木头的4个角刨过后就变小了。The piece was reduced in size by...
FOUR NEW SPECIES OF THE GENUS DELIA FROM LIAONING, CHINA ( DIPTERA: ANTHOMYIIDAE )辽宁省地种蝇属四新种 ( 双翅目: 花蝇科 )Most susceptible species belong to the orders Lepidoptera, Diptera, and Coleoptera.大多数感染的虫种属于鳞翅目 、 双翅目和鞘翅目.THREE NE...
总的来说，当今的老年人依然相对贫困。As a group, today's old people are still relatively deprived.当今的学生们拼写上差得令人吃惊。It's shocking how students can't spell these days.当今的典当商按照明晰的金融规章运作。Today's pawnbrokers operate within we...
The letter is on six sheets of foolscap.信写在6张大页纸上.He was still rumbling discontentedly when Pike returned bearing a folder of foolscap sheets.他正在不满地小声嘟囔时,派克抱着一叠印刷纸回来了....
Suffice it to say that the unusually high boiling point of acetic acid.只要谈一下醋酸的不寻常的高沸点就行.Acetic acid is formed as an intermediate in the anaerobic fermentation of carbohydrates, proteins, and fats.醋酸是碳水化合物, 蛋白质和脂肪在厌氧发酵时所...