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China's study of the test technologies of ink—writing time started comparatively late.

上世纪30年代以来，各国法庭科学工作者利用各种现代分析仪器对墨水字迹、圆珠笔油墨字迹形成时间进行广泛研究，取得了许多研究成果。

It was comparatively investigated that xylan was hydrolyzed by crude and purified xylanases in ultrafiltration membrane reactor and conventional stirring batch reactor.

分别研究了粗木聚糖酶和纯化的木聚糖酶在超滤膜反应器和常规反应器中的酶解特性。

Objective To study comparatively the therapy of the complete dislocation of acromioclavicular join.

目的 比较研究锁骨钩钢板与常规方法治疗肩锁关节全脱位。

They tested only one dose, which was larger than a human would comparatively use, Agarwal said, and after eight weeks, tumor volume in treated mice were reduced by 44 percent and tumor weight by percent, compared to control animals.

他们测试了，只有一针，其中大于一个人会比较使用，加瓦尔说，在八周后，肿瘤体积在治疗组小鼠分别下降了44 %和肿瘤重量%，较对照组动物。

The Powers themselves are discernible in comparatively few monuments of ancient law, but Agnatic Relationship, which implies their former existence, is discoverable almost everywhere.

只有在比较少数的古代法律的纪念碑中可以看到&父权&，但是，意味着父权存在的&宗亲&关系，则几乎到处都可以发现。

Results:flutamide degraded very easily under the alkalic condition, partly degraded under the acid and oxidation conditions, and was stable comparatively under the heat and light conditions.

结果：氟他胺在碱性条件下非常容易发生降解，在氧化条件和酸性条件下也会发生降解，在高温和光照条件下相对比较稳定。

This article analyses some basic conceptions that are comparatively vayue or even wrong wrong in the teaching of middle school chemistry, like the definition of chemical change, the influence of concentration on a chemical reaction , the structure of oxacid,and the acidity of sulfuric acid, the acidity of carbonic acid, and the conversion of allotropic substance.

分析了中学化学教学中的几个比较模糊甚至错误的基本概念，如化学变化、浓度对化学反应速度的影响、含氧酸的结构、硫酸的酸性、碳酸的酸性、热化学方程式的表示法、同素异形体间的转化等，并从大学化学角度加以澄清，以便使大一学生更准确地理解和掌握这些基本概念。

The results show that the leaf of Alnus cremastogyne is typical of bifacial leaf, the structural parameters of leaf among clones are very significant difference (P.01), of which the cuticle thickness varies most and the stoma density takes the second place, but cell tense ratio and spongy ratio and vein protuberant degree are comparatively stable.

结果表明，桤木叶为典型的异面叶，各无性系间叶片结构指标均存在极显著差异，其中角质层厚度变异最大，气孔密度次之，而叶片组织结构紧密度、叶片组织结构疏松度和叶脉突起度等比较稳定。

Wild Alstonia scholaris grows in groups but comparatively loose, which can lead to the lack of wild Alstonia scholaris resources.

灯台树主要分布在乔木层（盖度≤54%）和灌木层（盖度≤37%）较为松散的森林和轮歇地、农用耕地等地段，具萌生力较强的特点。

Methods The embryo calvarial periosteum tissue was taken and, human osteoblasts were obtained by enzyme-assimilating methods. The morphological change, growth feature and osteogentic capability of osteoblasts were observel during culture in vitro, drew the growth curve was graphed and the cells was identified by alkaline phosphatase dye. At the same time, the morphology and bioactivity of 3 to 5 th-generation osbeoblasts and anabiotic cells were studied comparatively.

取人胚胎颅骨骨膜，采用酶消化法获取成骨细胞体外培养并传代，观察细胞形态，生物特性，绘制生长曲线，并经碱性磷酸酶染色鉴定成骨细胞以及比较冻存前3~5代与冻存后成骨细胞的特点。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。