大体

The biomechanical tests showed that two kinds of artificial bones had not significant difference on compressive strength and Young\'s modulus(P＞0.05),while the flexural strength of nano-nacre artificial bone was less than the control group(P＜0.05).3.The results of CCK-8 showed that the difference were not significant in each group,the proliferation of osteoblast reached the peak at the 5th day;7 days after being co-cultured,the total protein content of study group was higher than control group and blank group(P＜0.05),while the difference between control group and blank group was not significantP＞0.05The difference of alkaline phosphatase activities among three groups was not significant(P＞0.05The SEM view showed that osteoblast attached and grew well in two kinds of artificial bone.4.X-ray photography showed that two kinds of powder started to degrade in 2 weeks;this phenomenon became more appear in 4 weeks,nano-nacre powder degraded faster than micron-nacre powder,while the hole shadow was easy to be found;in 8 weeks,all the femoral holes recovered and returned to normal bone mineral density in all groups.Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone grew fastest around the bone defect area in study group,while most slowly in blank groupP＜0.05 SEM(scanning electron microscope observation showed that nano-nacre powder degraded more quickly.The same result can be found through the demineralized sections morphometric analysis,and both of the composite artificial bones made from those two kinds of nacre powder had the good connection with the adjacent tissue in rats body without apparent inflammatory response.5.X-ray photography showed that rabbit\'s bone defects healed faster in study group since NNAB implanted than in control group since MNAB implanted.At 24 weeks after operation,bone density in radial defects had nearly accessed to the normal area,while lower in control group,and turned up nonunion in blank group;The checking of BMD showed that results in study group were higher than those in control group at 8,16 and 24 week(P＜0.05), and the difference between the BMD values in study group at 24 week and those in blank group was not significant(P＞0.05).The gross specimens showed satisfactory histocompatibility both in study group and in control group,with bone tissue growing from two sides into the center of implanted materials; Normal slices in HE stain and hard tissue grinding slices in Stevenel\'s blue/Van Geison\'s picro-fuchsin stain showed that the bone growth tendency was better in study group than that in control group,and the medullary cavity had been penetrated to the implanted materials in study group at 24 week;Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone in both groups grew fastest 8 weeks after surgery,while slow down at 16 week.

纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨分别与成骨细胞共培养后，其各时间点CCK-8法检测值与空白对照无显著差异(P＞0.05)，成骨细胞均在第5天达到增殖高峰期；培养7天后，实验组细胞蛋白含量高于对照组及空白组(P＜0.05)，后两者之间则无显著差异P＞0.05碱性磷酸酶活性在三组间均无显著差异(P＞0.05电镜下可见成骨细胞在两种人工骨上都有良好生长贴附能力。4.X-ray显示两种粉体在大鼠股骨骨洞植入第2周时都开始出现了降解，第4周时更为明显，纳米珍珠层粉较之微米珍珠层粉降解更快，而空白对照组骨洞阴影仍可见，至8周时，则所有组骨洞均己闭合修复，X-ray下已不可见原钻孔痕迹，恢复正常骨质密度；硬组织磨片四环素荧光双标记结果显示纳米珍珠层粉植入组较其余两组在骨缺损区周围新骨生长速度更快，空白组速度最慢P＜0.05电镜观察及常规脱钙切片亦可见到纳米粉体降解较快；由以上两种原材料制得的纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨在大鼠体内均与周围组织结合良好，无明显炎症反应。5.X-ray显示纳米珍珠层/消旋聚乳酸复合人工骨植入兔桡骨缺损区后其骨愈合速度较对照组微米珍珠层/消旋聚乳酸复合人工骨植入的快，至植入术后24周，实验组骨缺损区接近正常骨密度，对照组骨缺损区密度较低，空白组则呈现骨不连状态；骨密度测量结果显示术后8周、16周、24周实验组的骨密度值高于对照组(P＜0.05，24周实验组的骨密度值与术前所测得的正常值无显著性差异P＞0.05动物取材大体所见均显示组织相容性良好，骨组织逐渐由植入材料两端向中央生长；常规切片HE染色及硬组织磨片Stevenel\'s blue/Van Geison\'s picro-fuchsin联合染色均可见实验组骨缺损区长势优于对照组，至术后24周，实验组骨髓腔与材料已呈相交通状；硬组织磨片荧光显微镜下观察，两组材料在术后8周处于骨生长最快速时期，16周时速度开始减慢，术后4、8、16周时实验组的新骨生长速度均较对照组的快

Geomorphological features of Heilongjiang Province in general is a five-Hill, a water, a grass, one-third of fields.

黑龙江省地貌特征大体是五山、一水、一草、三分田。

Especially, the two regions Subartu and Guti will be discussed in detail. And a man will be studied by the documents about him. Meanwhile others relating to him will be also analyzed.

对其中两个主要的国外奴隶输入地苏巴尔图和库提进行分析，并结合文献具体分析其中一位委托人的大体情况，并对其他被委托人的情况进行研究。

It is true, we are such poor navigators that our thoughts, for the most part, stand off and on upon a harborless coast, are conversant only with the bights of the bays of poesy, or steer for the public ports of entry, and go into the dry docks of science, where they merely refit for this world, and no natural currents concur to individualize them.

这是真的，我们是一些可怜的航海家，我们的思想大体说来都有点虚无缥缈，在一个没有港口的海岸线上，顶多和有诗意的小港汊有些往还，不然就驶入公共的大港埠，驶进了科学这枯燥的码头上，在那里他们重新拆卸组装，以适应世俗，并没有一种潮流使它们同时保持其独立性。

Samples were extracted 6 and 12 weeks after operation for histological, histochemical and immunohistochemical analysis.

术后 6周和 12周分别处死动物、取材，进行缺损区大体、组织学、组织化学和免疫组织化学分析。

The samples were harvested in 2,4,8 and 12 weeks,and were then examined by gross,histomorphological analysis,quantitative analysis of new bone formation and biomechanical measurement.

术后2、4、8、12周时取材，分别作大体、组织形态学、新骨形成定量分析及生物力学测试。

There is not much correlation between pathological classification and molecular genetics of hydatidiform mole.

本研究结果不支持葡萄胎的遗传学类型与大体病理类型间有平行关系的论点。

Cases of tumor was performed by immunohistrochemical staining EMA and Vim were positive. 12 cases were hyperplasic lesions of mesothelial cell. Induced rats' MPM had a higher similarity with human' s MPM, especially in pathogenicity, positions, histological type and biological behavior of invasion and metastesis.

结果 实验组发生胸膜间皮瘤66例，诱发率71.74%，大体形态肉眼结节型间皮瘤较多见（72.73%）组织形态可见上皮型、梭形细胞型及混合型双向多潜能分化，13例免疫组化EMA及Vim双向阳性，并可见12例胸膜间皮细胞增生性病变，诱发瘤在病因，发病部位，组织形态学以及浸润转移的生物学行为方面与人体间皮瘤极为相似。

Based on the archeological discoveries, historical documents on paper and preceding research results, from an aesthetic and iconological perspective, the writer has formed a conceptual period idea for the regional arts of this period, and has given a general order and explanation to different kinds of art works, including stone, pottery, rock painting, woodcarving, textile, bronze ware, lacquer, architecture, painting, sculpture, calligraphy, etc.

笔者以考古发现的材料和历史文献及前人研究的成果为依据，从艺术学和图像学的角度，对这一时期楼兰鄯善艺术作了概念性地时代划分，并对不同类型的艺术作品进行了大体排序和简要考释，所涉及的艺术类型包括石器、陶器、岩画、木雕、织物、铜器、漆器、建筑、绘画、雕塑、书法等。

Methods:Ten adult mixed breed dogs(no significant individual difference)were made transverse fracture at bilateral iliopectineal crest 1.5 cm above the dome of acetabulum,which were fixed with ATMFS and steel plate respectively.The X-ray,macropathological observation and biomechanical test were analyzed at 1,2,4,8,12 weeks after operation.

选用10只成年杂种家犬，建立双侧髋臼臼顶上方1.5cm处的横形骨折动物模型，分别采用ATMFS前柱固定器和6孔重建钢板内固定，于术后1、2、4、8、12周各取2只动物，行X线检查、大体观察和生物力学测试。

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