查询词典 ordinary differential equation

METHODS: Rat bilateral olfactory bulbs and olfactory mucosa at 1/3 nasal septum were obtained, sliced, digested in trypsin, and made into monoplast suspension. At 1×109/L, cells were incubated in uncoated 25 cm2 culture flask. At 18-20 hours, cell suspension was moved into another uncoated 25 cm2 culture flask (the first differential adhesion). At 24 hours, cell suspension was moved into a poly-D-lysine-coated 25 cm2 culture flask or poly-D-lysine-coated 6-well culture plate (the second differential adhesion). At 48 hours, parenchyma cells were removed after a half of medium was changed.

完整取大鼠双侧嗅球及剪取鼻中隔后1/3嗅黏膜，剪碎后胰酶消化，制成单细胞悬液，按1×109 L-1密度接种于未包被的25 cm2玻璃培养瓶中，18~20 h后将细胞悬液转移至另一未包被的25 cm 2玻璃培养瓶中（第1次差速贴壁），24 h后再将细胞悬液转移至经多聚右旋赖氨酸包被的25 cm2塑料培养瓶或经多聚右旋赖氨酸包被的6孔培养板中（第2次差速贴壁），接种培养48 h后半量换液以去除杂细胞。

METHODS: Olfactory bulb was sterilely collected from rats, digested, and centrifuged. After removal of the supernatant, the olfactory bulb was resuspended with DMEM/F-12 medium containing 0.2 volume fraction of fetal bovine serum. The diluted monoplast suspension was equally assigned into 3 samples, and separately used for simple modified differential adherence, simple serum-free conditioned medium, and modified differential adherence + serum-free conditioned medium.

①无菌条件取大鼠嗅球组织，消化、离心去除上清液后，用含体积分数为0.2胎牛血清的DMEM/F-12培养基重悬，稀释的单细胞混悬液均分成3份，分别用于单纯改良差速贴壁、单纯无血清条件培养液纯化和改良差速贴壁+无血清条件培养液纯化的实验。

Objective To inquire into diagnosis, differential diagnosis and treatment of virilizing and feminizing adrenal syndrome especialy differential diagnosis between benigh and malignant of sex hormone producing adrenal neoplasma and treatment principles of congenital adrenal hyperplasia.

目的 探讨肾上腺性性征异常的诊断、鉴别诊断和治疗，特别是分泌性激素的肾上腺肿瘤的良恶性鉴别诊断和各种先天性肾上腺增生疾病的治疗原则。

Differential modulation is also a widely used method to the case of no knowledge of the channels in the receiver. Here we propose noncoherent sequence detection for differential space-frequency modulation, which can be used to alleviate the error floor that occurs in a multipath channel with long time delay expansion.

在接收端不知道信道状态信息的情况下，差分调制也是一种被广泛采用的技术，论文提出了应用于差分空频调制的非相干序列检测方法，该方法通过积累多个符号上的信道信息来完成发送符号的检测，可以消除由于长的信道延迟扩展带来的误码平层。

Gene differential expression of rice under photoinhibition was studied by means of mRNA differential display.

本文应用mRNA差异显示技术研究水稻光抑制条件下的基因差异表达，筛选并克隆了3个差异表达片段，编号为Z8、Z9和Z10。

The fracture reasons of high strength PC steel wire are analyzed, it's considered that center segregation, central cavitation, poriness and inclusion are the metallurgical reasons which lead to the facture of PC steel wire and in the rolling process, differential coping quality, microcrack caused by surface defect, abnormal microstructure caused by burnt and improper cooling velocity, the ears on the head of the wire, overlapping of the wire rod itself are the main reasons which lead to the facture of PC steel wire. At the same time, inappropriate pickling, differential phosphorization quality, the bad heat treatment quality, the generation of crack in the improper drawing and transverse crack caused by abnormal laying of the drawing die are also the reasons of the cracking of PC wire.

对高强度PC钢丝断裂原因进行了分析，认为连铸坯的中心偏析、中心缩孔、疏松和夹杂是导致PC钢丝断裂的冶金原因；轧制过程中，较差的修磨质量、表面缺陷导致的微裂纹，过烧以及不适当的冷却速度导致的非正常显微组织，盘条头部的耳子、盘条本身折叠是导致PC钢丝断裂的主要原因；同时，不恰当的酸洗、较差的磷化及热处理质量、不适当拉丝裂纹的产生、拉拔模具安放不正导致的横裂也是PC钢丝断裂的原因。

The Jacobi pseudospectral methods are applied to numericalsolutions of singular differential equations,differential equations in infinite intervals andin disc.

事实上，通过适当的变量代换，我们可把无界区域问题转化成某些特定的退化系数的有界区域上的奇异问题。

Letting the commonly used double-staged 2K-H typed differential mechanism be combined with the overrunning clutch this method achieved the operation without differential while the settlings were on sedimentation .

这种方法将常用双级2K-H型差速器与超越离合器结合在一起，在沉积物沉降时实现无差速运行，从而避免了相对运动所带来的不良效果。

Letting the commonly used double-staged 2K-H typed differential mechanism be combined with the overrunning clutch this method achieved the operation without differential while the settlings were on sedimentation.

E书简介：摘要：传统卧式螺旋离心机在物料沉降分离时，对转鼓与螺旋输料器的相对运动所产生的搅动现象，提出一种差速传动机构改进方法。

Letting the commonly used double-staged 2K-H typed differential mechanism be combined with the overrunning clutch this method achieved the operation without differential while the settlings were on sedimentation.

传统卧式螺旋离心机在物料沉降分离时，对转鼓与螺旋输料器的相对运动所产生的搅动现象，提出一种差速传动机构改进方法。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。