查询词典 presence

Distractedly, Alija started to play the melody he had composed, but when he did, the Master's presence withdrew.

接着，大师退开，乐器再次出现在Alija的手中，他心烦意乱地开始演奏他的曲子，但是大师开始离场。

The reaction of fluoroalkyl iodides with ethyl vinyl ether and amines in the presence of sodium dithionite was studied.

研究了在保险粉存在下，氟烷基碘(1)与乙烯基乙醚和伯胺或仲胺(2)的反应。

The reaction of polyfluoroalkyl iodides with 4-pentenoic acids in the presence of sodium dithionite at room temperature in aqueous acetonitrile solution [CH〓CN: H〓O=3: 1 ] to gave the corresponding adducts, the latter could form γ-lactones 31～51 in the same medium in 62～92％ yield.

室温下，在乙腈/水[3：1]的介质中，多氟烷基碘化物在连二亚硫酸钠的存在下与4-戊烯酸及其在2或3位上具有取代基团的衍生物进行反应，反应2～5h，起先生成两者的加成物，该加成物无需分离，在同一介质中，可进一步反应得到相应的多氟烷基取代的γ-丁内酯31～51，产率62％～92％。

Polyfluoroalkyl iodides could react with unsaturated olefin acids in the presence of sodium dithionite by radical addition to give adducts. It was found that these adducts could form polyfluoroalkyl substituted γ or δ-lactones due to intramolecular nucleophilic substitution in the alkali solution.

研究发现：多氟烷基碘化物在连二亚硫酸钠存在下与不饱和烯酸经自由基加成得到的产物，能在碱性条件下进行分子内亲核取代反应形成五元或六元环的含氟内酯类化合物。

According to AAS data, Fe, Ni and Mn in pits dissolved into ions in form of divalence, and Cr in form of trivalence both in the presence and absence of PD.

结果表明：304不锈钢蚀孔内，铬元素以三价，铁、镍和锰以二价离子形式溶解，缓蚀剂PD不改变各元素溶解的价态。

The photodegradation of three phenols in different mediums was studied in the presence of divalent manganese ions.

通过对不同锰离子浓度下三种酚在三种不同介质中的光降解情况的研究，来确定水体中的锰离子对酚类有机物的光化学降解的影响。

These concepts are up to date, because custom demands are changing and diverging in the presence.

这是最新的观念，因为习惯的不同需求和变化的存在。

In the presence of DNA, the electrochemical behavior of DNR was unchanged.

加入DNA后，柔红霉素的电化学行为没有改变。

Ordinarily domiciled condition is a physical presence test and does not relate to citizenship or to any address of convenience.

正常居住的条件是指实际地出现而非关于公民身分或地址所限。

China's presence in Africa reaches to the very doorstep of the African Union.

中国在非洲的势力伸到了非洲联盟的门口。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。