c14
- 网络碳14
-
Convergent beam electron diffraction study of C14 type Laves phase in GH 302 alloy
GH302合金中C14型Laves相的会聚束电子衍射研究
-
Studies of some properties of alkaline cellulase from Bacillus sp. C14
芽胞杆菌C14菌株鉴定及其碱性纤维素酶性质
-
Spore-pollen analysis and C14 dating of bottom sediments in western part of the central Pacific
中太平洋西部海底沉积物孢粉分析与C~(14)年代测定
-
The results show that the alloys is composed of BCC phase and C14 Laves phase .
研究表明:合金由C14Laves相和BCC相构成;
-
Determination of C14 concentration in the kerosene dissolvent of vaporizer mosquito liquid FLUID THERAPY
液体蚊香煤油溶剂中C14含量的测定
-
C14 So it 's got some concentration of14C that came from carbon dioxide in the atmosphere .
它获得,通过吸收空气中的二氧化碳。
-
From C5 to C14 , slowly I became a good English speaker and a more confident teenager .
从C5到C14,我的英语能力逐渐提高,并且在与外教们的沟通中建立了更好的自信。
-
The results show that these alloys are composed of C14 Laves phase matrix with hexagonal structure and C15 Laves second phase with cubic structure .
结果表明,合金均由六方结构的C14型Laves主相和立方结构的C15型Laves第二相构成;
-
Results show that all the alloys consist of a V-based solid solution main phase with bcc structure and a C14 laves secondary phase with hexagonal structure .
结果表明,当无La替代时,合金主要含有BCC结构的固溶体相以及少量Laves相。
-
The change of amount solubilized may be explained in terms of the aggregation numbers of C14 BE micelle decreased in the presence of PVP .
PVP的存在未能改变苯甲醇的增溶位置,且使胶束的增溶量呈现减少趋势。
-
The geological cause of the mixed layer and its distributing characters are defined by spore pollen analysis , scanning electron microscope and C14 isotope test in this paper .
根据孢粉、扫描电子显微镜、C14检测数据和前人的资料,确定了腐木淤泥混合土的成因环境和分布特征。
-
Results indicate that the average molecular weight of the petroleum acids is about 490 . The C14 ~ C16 components cover nearly 50 % in total petroleum acids .
结果表明,孤岛原油中石油羧酸平均相对分子质量在490左右,脂肪酸中C14~16成分占50%以上;
-
ECAs of vitamin E acetate on saturated fatty acids were present in order C14 > C17 > 0 > C18 > C16 .
维生素E醋酸酯对饱和脂肪酸效用系数大小依次为:C14>C17>0>C18>C16。
-
The phthalic C14 mono ester were prepared by the reaction of tetradecanol with phthalic anhydride in cyclohexane , and sodium phthalate .
以环己烷为溶剂,合成了邻苯二甲酸单十四醇酯,并对反应时间、催化剂及用量、原料配比诸因素进行了考察。
-
Polyunsaturated fatty acid and C14 ~ C18 saturated fatty acid are predominant , suggesting that plankton is the main source of POM in the Daya Bay .
而主要来源于浮游生物的C14、C16、C18饱和一元酸及多不饱和脂肪酸含量占总脂肪酸含量的百分比较高,表明浮游生物对大亚湾POM有较大贡献。
-
The potency and the number of type I colony decreased after subculture . The high yielding property of C14 strain is not stable , and the C14 strain also needs natural selecting and further improving .
C14变株经传代后1型菌落减少,生产能力下降,其高产性状不稳定,需不断自然分离,进一步提高效价。
-
The results indicate that the microstructure of the AB_2 alloy is composed of main C15 Laves phase with cubic structure , the minor C14 Laves phase with hexagonal crystal structure and non-Laves phases .
结果表明,AB2型合金是以立方结构的Laves相C15为主相,其中有少量六方结构的Laves相C14和非Laves相。
-
C14 Laves phase also works as an electrochemical catalyst for the V base solid solution phase , which enhances the use of V base solid solution phase to make electrochemical properties of Ti-V base multiphase hydrogen storage electrode alloys preferable .
因此,该合金中,Laves相既是吸氢相又是催化相,提高合金中V基固溶体相的利用率,从而使Ti-V基贮氢合金具有较好的综合电化学性能。
-
Based on the field investigations and C14 datings of 25 specimens , the problems about the division and correlation of the Late Quaternary stratigraphy and the recent tectonic movement in the region of the Luanhe River Delta were discussed .
本文根据滦河三角洲地区野外调查和25个样品的C~(14)年代测定结果,讨论了第四纪地层划分和对比以及近代构造运动。
-
The results showed that F1 and C14 promoted fruit expansion , and advanced flesh soluble sugar content and ratio of sugar and acid or Vitamin C content . Moreover , Neither of them lead to ( decrease ) of flesh firmness and soluble solid content .
结果表明,F1和C14既促进了果实膨大,又提高了果肉可溶性糖含量和糖/酸比值或Vc含量,而且二者均未引起果肉硬度与可溶性固形物含量的降低;
-
C3 , C7 , and C14 groups : the chronic sciatic nerve constriction ( CCI ) model was established , the mechanical pain threshold was measured and the samples were obtained on the 3rd , 7th , 14th postoperative day , respectively .
C3、C7、C14组分别为慢性坐骨神经紧缩性神经病理性疼痛(CCI)模型术后3、7、14d测痛阈取标本。
-
It is found by XRD analysis that the alloy mainly consists of C14 Laves phase with hexagonal structure and V-based solid solution phase with BCC structure . The rapid solidification leads to the decrease in content of the C14 Laves phase in the alloy .
XRD研究表明:合金主要由六方结构的C14Laves相和体心立方结构的钒基固溶体相所组成,快速凝固减少了合金中C14Laves相的含量。
-
The alkylation of benzene with long chain alkenes , basically in the range of C10 to C14 , is performed in the manufacture of linear alkylbenzene ( LAB ), an important intermediate used in the production of biodegradable surfactant in detergency sector .
苯与长链烯烃(C(10~14))烷基化生产的线性烷基苯(LAB),是洗涤剂工业合成可生物降解表面活性剂的重要原料。
-
The serum free fatty acid ( FFA ) spectrum were measured in 33 patients with primary hepatocellular carcinoma ( PHC ) by gas chromatography . The spectrum of FFA ( from C14 ∶ 0 to C22 ∶ 6 n-3 ) in PHC patients were abnormal .
本文用气相色谱法(GC)测定33例原发性肝癌(PHC)病人血清游离脂肪酸(FFA)谱,主要分析C14∶0~C22∶6n-3FFA的变化情况。