查询词典 urea-formaldehyde

The PUUs and PUAs synthesized with isophorone diamine showed lower degree of hydrogen bonding for the urea carbonyl groups existed in the system as well as better miscibility between soft and hard segments, compared to those prepared with ethylenediamine or hexanediamine as chain extenders.

用异佛尔酮二胺、乙二胺和己二胺三种扩链剂合成了不同结构的脂肪族聚氨酯脲和聚脲，并考察了扩链剂对聚氨酯脲和聚脲形态结构与性能的影响。

Blood lactid acid,blood urea,hemoglobin and urobilinogenuria were alsomeasured.

结果表明，运动后尿蛋白总量、白蛋白和β_2-微球蛋白的排泄量不但和运动强度有关，还与血乳酸水平和持续时间长短有关。

A sort of lipase producing strain with relatively high esterification rate of ethyl hexanoate was obtained was isolated from Lavandula vera L. root soil. The strain was identified and named as Arthrobacter Y-605. The optimal lipase producing conditions of the strain was indicated in details and the results were as follows:2% maize meal, 1% soy flours, 0.1% urea, 0.05% MgSO4, 0.1% K2HPO4, 0.15% KCl.

以有机相中合成酶活为指标，通过对薰衣草根际土壤产脂肪酶菌株的筛选，获得了一株在有机相中合成己酸乙酯转化率相对较高的细菌Arthrobacter Y-605，其己酸乙酯转化率为67.53%。

Using Lithospermum erythrorhizon seeds grown in the northeast of China as raw material, tracing and analyzing quantitatively with gas chromatographic method and applying an improved method of urea inclusion,a thorough experimental research was performed on the technical conditions to separate and purify linolenic acid from Lithospermum erythrorhizon oil.

以中国东北地区产的紫草种籽为原料，气相色谱内标法进行跟踪定量分析，采用改进的尿素包合法，对从紫草种籽油中分离提纯亚麻酸的诸工艺条件进行了实验研究。

Ethanol yield could reach 20.52 g/L (74.5 %of theoretical yield) under the following conditions: fermentation temperature at 28 ℃, initial pH value as 5.0, 150 mL liquid loadage in 250 mL rotating flask, and rotating speed at 160 r /min, and 0.5 % corn steep liquor and 0.024 % urea. Tran. by YUE Yang

在28 ℃，初始pH值5.0，160 r/min，250 mL三角瓶装液量150 mL，木糖浓度60 g/L，玉米浆0.5 %，含尿素0.024 %的条件下，休哈塔假丝酵母发酵木糖能产乙醇20.52 g/L，得率达到理论值的74.5 %。

Ethanol yield could reach 20.52g/L (74.5%of theoretical yield) under the following conditions: fermentation temperature at 28 ℃, initial pH value a 5.0, 150mL liquid loadage in 250mL rotating flack, and rotating speed at 160r/min, and 0.5% corn steep liquor and 0.024% urea.

在28℃，初始pH值5.0，160r/min，250mL三角瓶装液量150mL，木糖浓度60g/L，玉米浆0.5%，含尿素0.024%的条件下，休哈塔假丝酵母发酵木糖能产乙醇20.52g/L，得率达到理论值的74.5%。

Water, Kaolin, Montmorillonite, Stearic Acid, Cetyl Alcohol, Glycereth-26, Glyceryl Stearate, Peg-100 Stearate, Aloe Barbadensis Leaf Juice, Triethanolamine, Titanium Dioxide, Menthyl Pca, Lauryl Pca, Fragrance, Diazolidinyl Urea, Propylene Glycol, Ethoxydiglycol, Methylparaben, Citric Acid, Panax Ginseng Root Extract, Zinc Pca, Copper Pca, Yellow 5, Blue 1

水，高岭土，蒙脱土，硬脂酸，鲸蜡醇，Glycereth-26，甘油硬脂酸酯，培格100硬脂酸，芦荟叶汁，三乙醇胺，二氧化钛，薄荷醇，香料，尿素醛，丙二醇，乙氧基二甘醇，对羟基苯甲酸甲酯，柠檬酸，人参精华，锌，铜，黄色5#，蓝色1#。

Cellulose carbamate was synthesized in xylene as solvent with microcrystalline cellulose and urea as raw materials.

以微晶纤维素和尿素为原料，二甲苯为溶剂合成了纤维素氨基甲酸酯。

The results show that monoammonium phosphate, diammonium phosphate, single superphosphate or triple superphosphate may be used as raw materials to produce urea based compound fertilizers and the nutrient content may be adjusted in line with the demand of the users.

许多厂家正寻求利用尿素生产不同品种新产品的方法，高养份尿基复合肥的问世满足了用户和厂家最有效利用养份和节约销售成本的要求。生产尿基复合肥的关键在于造粒技术。

In order to make WRCRFs with good performance, the raw material fertilizers with smaller effects on HWAR such as urea, monoammonium phosphate and potassium chloride should be selected. On the other hand, for HWAR, high stability and adequate WAR such as polyacry lamide graft polymer should be needed.

制造性能优越的保水型控释肥，应尽可能选择对HWAR稳定性影响较小的尿素、磷酸一铵、氯化钾等原料肥料，对于包膜材料则应选择稳定性高且具适度吸水倍率的聚丙烯酰胺型HWAR。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。