查询词典 n.d.

The phenolic acid content of litter was significantly reduced with the decomposition time prolonging, and the releasing quantity of phenolic acid was the highest at the tenth day. The amounts of soil Aerobic azotobacter, Ammonifier and Aerobic cellulose-decomposer and the soil chemical properties such as pH, phenolic acid content, NH+4-N and available phosphorus were significantly affected by the litter aqueous extract of four decomposition stages.

凋落物分解的60 d中，凋落物残留量在前30 d内变化最大，30 d后无显著变化；凋落物中酚酸含量随分解时间的延长，呈显著降低的趋势，且在分解10 d时，酚酸释放量最大。4个分解动态的凋落物浸提液显著地改变了土壤好气性自生固氮菌、氨化细菌、好气性纤维素分解菌的数量和土壤pH值、酚酸含量、铵态氮、有效磷等化学性质。

Biomass and WUE1 of wheat with R chromosome set is largest in all diploidy material, and that with B chromosome set is least in all diploidy material. Meanwhile, the root growth of wheat with A and B chromosome set is largest, and that with D chromosome set is least in all diploid material.

N、P影响了干旱下玉米叶片的气体交换能力，表现为提高了干旱下玉米叶片的气孔导度和光合速率，且N的作用要大于P的作用；N具有同时降低玉米叶片光合作用的气孔和非气孔限制的作用，而P提高玉米光合则主要是由于降低了干旱下的非气孔限制。

Like the above result, any two vertices which are of distance 2 is discussed, then we obtain the following result in this thesis: let G be a graph of order n ≥ 3 such that d + d ≥ [(4n)/3] - 1 where d = 2 in G, then every vertex of G is contained in a 3-cycle.

类似上面结论，我们也只考虑图中距离为2的点对，得到下面结论：若对G中的任意距离为2的点u和v有d+d≥[4n/3]-1，那么G中的每个点都含在一个3圈中。

Formylation and diformylation of dithieno [2,3-b:3',2'-d] thiophene were prepared by two methods. Firstly, aromatic carbanions were prepared by 1 Br/Li exchange of bromo dithieno[2,3-b:3',2'-d]thiophene with n-BuLi in THF at low temperature; 2 deprotonation of dithieno[2,3-b:3',2'-d]thiophene with LDA.

二噻吩并[2，3-b：3'，2'-d]噻吩单醛与双醛的制备首先通过两种方法产生芳基负离子：1溴代并三噻吩在四氢呋喃中与正丁基锂发生的溴锂交换；2用LDA对二噻吩并[2，3-b：3'，2'-d]噻吩去质子化作用。

The mineralization rates of composts for chicken manure,cattle manure and pig manure increased after 10 d,60 d,60 d,respectively.

随培养期延长，施肥土壤NH4+-N含量迅速下降，培养5 d时低于对照土壤、15 d后接近或略高于对照土壤。

METHODS: Fifty patients with DPN were randomly divided into 2 groups(n=25). The treatment group received intravenous injection(1/d) of 60 mg CTP and 500 mg SF; the control group received intravenous injection(1/d) of 100 mg vitamin B1 and 500 μg vitamin B12 and 500 mg SF, with 14 d as a course.

将50例DPN患者随机分为2组，治疗组25例用CTP 60 mg，SF 500 mg，静脉滴注，1次/d，对照组25例用VitB1 100 mg，VitB12 500 μg和SF 500 mg，静脉滴注，1次/d，疗程均为14 d。

011 Ppm and the total average content of lead was 0.03 ppm (N.D.~0.09 ppm). The average contents of cadmium, mercury and lead for the first crop rice were 0.05 ppm N.D.

检测结果，镉含量总平均值为0.05 ppm （未检出～0.12 ppm），汞含量总平均值为0.002 ppm（未检出～0.011 ppm），铅含量总平均值为0.03 ppm（未检出～0.09 ppm）。

Methods:In patients with ACS(n=32) and controls(n=21) the selective coronary arteriography was performed and the coronary artery stenosis scores were evaluated through accumulative total integration. Plasma concentrations of fibrinogenwere determined with hemagglutinin analysator and plasma concentrations of von Willebrand factor、 D-Dimer、 plasminogen activator inhibitor、platelet membrane glucoprotein(GMP-140) were determined with enzyme linked immunosorbent assay.

选择ACS患者32例和对照组21例进行选择性冠状动脉造影，对冠脉造影结果采用累计积分法进行冠状动脉狭窄评分；使用血凝分析仪测定受试者血浆纤维蛋白原水平，使用酶联免疫法测定外周静脉血血管性血友病因子、D-二聚体、纤溶酶原激活剂抑制物、血小板膜糖蛋白140（GMP-140）的含量。

In addition, the maximum length ofn andn were higher in region D than in region E.

在长度分布方面，D区域的n及n之最大长度大於E区域。

Pablo Picasso the n took a trip to France where he discovered the work of master artist Toulouse Lautrec, perhaps it was Lautrec's fascination with the female form, and with street walkers in particular that influenced Picasso to paint Les Demoiselles d'Avignon, the piece which brought on his first big break.

帕布鲁棕色毕卡索 n 到法国旅行了哪里他发现了工作主人艺术家土鲁斯 Lautrec，也许它用女性形式是 Lautrec 的魔力，和和处于对油漆 Les Demoiselles d'Avignon 影响了毕卡索的个别项目的街道徒步者，带来的块他的第一大的休息。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷