4

Fry for about 4 minutes, until the onion has softened.

煎4分钟左右，直到洋葱变软。

Lupescu scored from 20 yards and then Balint made it 4-0.

卢佩斯库在20码处射门得分，接着巴林特将比分扩大为4比0。

The restoration took almost 4,000 man-hours over four years.

修复工作历时4年，耗费近4,000工时。

A method of synthesis of 2,3,4,5 tetrahydro 3 oxo 4 amino 6 methyl 1,2,4 triazine 3 cyanopyridine from ethyl acetate with the yield of 60.4% followed by the synthesis of pymetrozine with a yield of 93.1% and purity of 96.7%.

研究了乙酸乙酯法合成中间体2,3,4,5四氢3氧4氨基6甲基1,2,4三嗪（以下简称氨基三嗪酮），3氰基吡啶法合成吡蚜酮。中间体合成收率60.4%，产品合成收率93.1%，产品纯度96.7%。

A series of Copolyimides, derived from hexamethylene diamine ( HMD ) , 4,4� �-diaminodiphenyl ether ( ODA ) and 3,3� �, 4,4� �-oxydiphthalic dianhydride ( ODPA ), were prepared.

采用二苯醚3,3, ′4, 4′-四 甲酸 二酐与己二胺和4, 4′-二氨基二苯醚为 单体 合成聚酰胺酸, 经热酰亚胺化制备共聚型聚酰亚胺.

A series of Copolyimides, derived from hexamethylene diamine ( HMD ) , 4,4� �-diaminodiphenyl ether ( ODA ) and 3,3� �, 4,4� �-oxydiphthalic dianhydride ( ODPA ), were prepared.

采用二苯醚3,3, ′4, 4′-四 甲酸 二酐与己二胺和4, 4′-二氨基二苯醚为 单体 合成聚酰胺酸, 经热酰亚胺化制备共聚型聚酰亚胺.

The optimal composition of fermentation medium for Aspergillus niger was: sucrose 3 %, NAN 03 0.2 %, K _ 2 HPO _ 4 0.1 %, MgSO _ 4·7 H _ 2 O 0.05 %, FeSO _ 4 0.001 %, KCl 0.05 %.

确定了其最佳培养基: 蔗糖3%, NaNO_30.2%, K_2HPO_40.1%, MgSO_ 4·7H_2O0.05%, FeSO_40.001%, KCl0.05%.

The single phase SrBi 4 Ti 4 O 15 or BaBi 4 Ti 4 O 15 was completely formed at 850℃.

850℃时SrBi4Ti4O15或BaBi4Ti4O15的主要衍射峰全部出现.

Their 4-1 win in Honduras was a particularly lively affair.

他们在洪都拉斯以4比1获胜的那场比赛尤其激动人心。

The scheme offers seed corn finance with loans at only 4% interest.

该方案提供种子基金融资，其贷款只收取4%的利息。

As one of the main precursor of poly ( phenylene sulfide amide), 4 chloro N ( 4 ′ chlorophenyl) benzamide ( DCBA) of high purity was two step synthesized from 4 chlorobenzoic acid and 4 chloroaniline with good yield.

以对氯苯甲酸和对氯苯胺为主要原料，高产率获得了4－氯－N－（4′－氯亚苯基）苯甲酰胺（简称DCBA）。

The GM diesel engine shunted the coaches to Platform 4.

通用柴油动力火车头将车厢转轨到了4号月台。

At about 4.30 p.m. Audrey arrived at the office.

大约下午4点30分，奥德丽到了办公室。

The best combination of the medium is corn flour 5 %, NH 4 Cl 0.3 %, KH 2 PO 4 0.05 % , MgSO 4·7 H 2 O 0.15 %.

最佳组合为玉米粉5%, NH4Cl0.3%, KH2PO40.05%, MgSO4. 7H2O0.15%.

The contents of 4-cumylphenol, 2,4-dicumylphenol and 2,4 , 6-tricumylphenol were obtained by GC.

用GC测得各组份的含量, 结果表明, 用不同的催化剂,可生成不同含量的烷基化产物.

The centre of the town is 4 kilometres from the station.

市中心距离车站4公里远。

From the experimental results , fha best technology conditions to make the chlorideless compound-fertilizer-mNH _ 4 H _ 2 PO 4· nKH _ 2 PO _ 4 can be obtained.

得出了制备一定氮、磷、钾比例的无氯复合肥料的最佳工艺条件.

They agreed to bid the picture up to 4,500 francs.

他们同意将这幅画的价格提至4,500法郎。

The contents of 4-cumylphenol , 2 , 4-dicumylphenol and 2, 4 , 6-tricumylphenol were obtained by GC.

用gc测得各组份的含量, 结果表明, 用不同的催化剂,可生成不同含量的烷基化产物.

Kenya's population is growing at 4.1 per cent per annum.

肯尼亚人口正以每年4.1%的速度增长。

He recovered from a 4-2 deficit to reach the quarter-finals.

他在2比4落后的情况下实现逆转闯进1/4决赛。

In low temperature, reaction of ketone with sodium acetylide synthesized 1-ethynyl-2,3, 4,5-tetramethyl-2-cyclopentene-1-ol; 1,2-diphenyl-2-hydroxy-3-butine-1-one; 3,4-diphenyl-1,5-hexadiine-3,4-diol and 3,4-diphenyl-3-cyclopentene-1-one.

报道了在低温条件下, 以邻二酮和α-环烯酮为原料与炔钠反应,合成了2,3, 4,5-四甲基-1-乙炔基-2-烯-环戊醇、1, 2 - 二苯基 -2 - 羟基 -3 - 丁炔 -1 - 酮、3, 4 - 二苯基 -1,5-己二炔-3,4 - 二醇和3,4 - 二苯基 -3 - 环戊烯 -1 -酮4种化合物.

He will get a pay rise of nearly £4,000.

他的工资将会上涨将近4,000英镑。

The series goes out at 10.30pm, Fridays, on Channel 4.

这部连续剧每周五晚上10点30分在第4频道播出。

The liquidus temperaturecurves and spontaneous crystallization temperature curves of three systems, i . e . BaB _ 2 O _ 4-BaF , BaB _ 2 O _ 4-BaCl _ 2 and BaB _ 2 O _ 4-BaB _ 2 O _ 4· Na _ 2 O, are given.

详细地介绍了寻找适合于此晶体生长的最佳助熔剂,并给出BaB_2O_ 4Κ—BaF_2,BaB_2O_ 4—BaCl _2和BaB_2O_4—BaB_2O_4·Na_2O等三种体系的液相线温度曲线和自发结晶温度曲线.

Draw the basic outlines in black felt-tip pen (see fig. 4).

用黑色毡头笔画出基本轮廓（见图4）。

Cis , cis-1, 4-dibromo-1,2 , 3,4-tetraphenyl-1,3-butadiene is obtained from the reaction of 1 , 4-dilitho-l, 2,3, 4-tctraphenyl-l , 3-buladicnc with carbon tetrabro-mide.

1,4-二锂-1,2,3,4-四苯基-1,3-丁二烯与四溴化碳反应生成顺, 顺 -1, 4- 二溴-1, 2, 3,4-四苯基 -1, 3- 丁二烯.

Synthesis and Crystal Structure of 3-Phenoxymethyl-6-( 2,4-difluorophenyl)-7H-1,2,4-triazolo [ 3,4-b] [ 1,3,4] thiadiazine

3-苯氧甲基-6-（2,4-二氟苯基）-7H-1,2,4-三唑并[3,4-b][1,3,4]噻二嗪的合成与晶体结构研究

About 4% of the prison population have chronic psychiatric illnesses.

大约4%的犯人有慢性精神疾病。

First , LiOH · H _ 2 O , FeC _ 2 O _ 4·2 H _ 2 O and NH _ 4 H _ 2 PO _ 4 were selected as the raw materials based on their characteristics.

对固定体系反应历程的研究发现:由于LiOH·H_2O 、 FeC_2O_4·2H_2O两 种原料之间相互反应生成Fe( OH) _2,导致混料阶段产生Fe~(3+)杂质.