查询词典 come on stage

Whereas, the tapetum of Zhenshan 97A disaggregated at the pollen mother cell stage, the nuclear membrane and the cell membrane disaggregated, the phenomena continued to the binucleate pollen stage. The cytoplasm of the tapetum cells of Zhenshan 97A deposited a few Ca^2＋ precipitates at the pollen mother cell stage.

珍汕97A绒毡层细胞从花粉母细胞时期开始，细胞质内有少量颗粒状的Ca^2＋沉淀；减数分裂时期，绒毡层细胞的内切向壁表面有大量大颗粒的Ca^2＋沉淀；单核花粉时期绒毡层细胞周围集聚一层Ca^2＋沉淀。

Results Expressions of pDGF-BB chain and PDGFR-α mRNA were low at the pseudoglandular stage of day 18, reached the peak level at the canalicular stage of day 19 and the sacculate stage of day 21 of gestations, fell again in newborn rats, and then increased in adult rats.

结果 (1)PDGF-BB、PDGFR-α mRNA随胎龄增长而增高，高峰在19～21天，新生时表达减少，成年时又增高到接近胚胎晚期水平；PDGF-AA和PDGFR-β mRNA在胚胎晚期、新生与成年鼠肺中均有表达，不随胎龄增长而变化，肺内PDGFR-β的表达高于PDGFR-α。

The process of the formation of volatile oil in fruit can be divided into three stages: development stage, isolation stage, and disintegration stage; the endocrina structure of the fruit was lysigenous secretory canel.

孜然芹果实中挥发油的形成主要经历了油细胞的发育、分离、解体三个时期；果实中内分泌结构为溶生式的分泌道。

Students have grasped this kind of model in the primary stage, while apply it in practice they still repeat the theme of the former sentence, which means that Vietnamese students are not skillful at the discourse cohesion; in the middle stage, there are passive sentences and "catenulate"sentences, but some of the students bring on grammatical errors while assuring the cohesiveness of discourse; in the advanced stage, the second cohesive model disappears while amount of third cohesive way appears which even more than the second one, which shows that students no longer stand on the cohesiveness formally but to make the "zero"cohesive of discourse.

另外我们还在语料中发现了被动句的语体风格出现偏差的情况。在运用被动句的语篇衔接功能时，留学生普遍运用第一种主位推进模式。在初级阶段学生就已经基本掌握了这种模式，但有时会不必要地重复前句的主位，这说明留学生对汉语的语篇衔接还不够娴熟；有的学生不能够使用被动句完成语篇衔接，可能是受词汇量的影响。

By the analysis to the chronogenesis of NE、NW、EW structure in the Northeast of Sishuan ,and the compound analogy of Daba mountain structure belt with West Xiang'E structure belt, three stages which were Indo-chinese stage, Yanshan stage and Himalayan stage could be separated in the studied area.

通过对川东北地区NE、NW、EW 向构造相互形成时序关系分析，并与大巴山构造带及湘鄂西构造带的交切复合类比，从而在研究区筛分出印支、燕山和喜山三期构造。

The establishment of these Coban, in order to train a large number of Hebei Bangzi artistic talents, who have enjoyed the name on the stage at the Metropolitan Opera inter-cloud fields (stage name ring Miracle, double-shun classes sit Branch), Yang Yun spectrum (the stage name of Crepis grass, Xiang-Qing, and Ban Chuke), well known in the vast rural areas of Hebei, Liu Si-hong, Ruey-Fen Liou, etc..

这些科班的建立，为河北梆子培养了一大批艺术人才，如曾享名于京华戏曲舞台上的田际云（艺名响九霄，双顺班坐科）、杨韵谱（艺名还阳草，祥庆和班出科），饮誉于河北广大农村的刘四红、刘瑞芬等。

In order to investigate the succession of soil microbial community with ecosystem development, soil samples of three successional stages (i.e., barren stage, cryptogamic crust stage and herbaceous vascular plant community stage) from two tailings wastelands (Yangshanchong tailings wasteland discarded in 2001 and New Tongguanshan tailings wasteland discarded in 1991) were collected and soil microbial biomass was determined by methods of typical plate culture' and molecular biology.

该研究以2处（即，铜陵杨山冲尾矿废弃地和铜官山新尾矿废弃地）不同时期弃置的、处于3个演替阶段（原生裸地阶段、隐花植物结皮阶段和草本维管植物群落阶段）的铜尾矿废弃地为研究对象，利用传统培养法和分子生物学法相结合的手段对土壤微生物量和土壤微生物群落结构变化及其影响因素进行了调查。

The author pointed out that generated CBM should consist of primary biogenic methane gas in lignite stage, thermogenic methane gas in long-flame coal to gas/fat coal stage, and deuterogenic biogenic methane gas in coal seam imbedded stage.

首先，根据下侏罗统八道湾组和中侏罗统西山窑组煤储层发育、煤岩、煤质、煤级、煤类、煤相地质特征论述了本区低煤级煤层气生成的物质基础。

Temperature field in the sinter process of magnetic ferrite was numerically simulated by using finite element method. Temperature distribution of workpiece during the sinter process is concluded, where it indicates different sinter stage and different diathermanous mode. Also critical temperature is gained, it differentiates between low temperature stage mainly with convection and high temperature stage mainly with radiation.

利用有限元分析法对永磁铁氧体材料烧结过程温度场进行了数值模拟研究，得出铁氧体磁瓦在烧结过程的不同传热方式下、不同烧结阶段的温度分布规律，得出了烧结过程对流传热为主的低温阶段与辐射传热为主的高温阶段的分界温度。

The result showed that the clustering degrees of the populations of Hippuris vulgaris,Eleocharis valleculosa and Blysmus sinocompressu increased first and then decreased from the invasive stage, settle ment stage to culminative developmental stage. While the clustering degree of the population of Suaeda glauca increased from seedlings to propagation in which the population appeared aggregation.

研究表明：杉叶藻、槽杆荸荠、华扁穗莞三种群由侵入期、定居初期到种群发育盛期的过程中，其集群程度先增大后减小，总体呈扩散的趋势；碱蓬种群，从幼苗到繁殖期，集群程度增大，呈聚集的趋势。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48