难达到

Distortion in fiscal information is a great menace, the possible consequences of which may shackle enterprises" interior management and administration, weaken efficacy of governments" macro-control, traumatize investment environment, and damage interests of investors and creditors, and so on.

会计信息失真一直是会计学界研究的重点课题，但由于会计信息失真产生的原因是多方面的，单纯从会计学角度来研究解决这个问题很难达到预期效果。

There is little unanimity of thought, however, as to the precise pathways of evolution in the past.

人们的思想是很难达到一致的，对于过去生物进化的精确途径这一问题同样是这样。

This type of lifestyle is even rare for upper middle class American family.

事实上在美国中产阶级以上的家庭都很难达到这样的消费水平。

"Consequently, it is much more cumbersome to arrie at an optimal dose for insulin because one needs to test himself," said Dr.

Dr。 Trautmann说到：&理所当然，由于需要患者自测很难达到最适胰岛素剂量&

Now, Flavonoids and ginkgolides were mainly extracted from the leaves of Ginkgo biloba., but the leaves often contain high content of corious and cereous, and the effective constituent is very different under the various conditions. In addition, the constituent of ginkgolides is very low in the leaves, and thus the quality of extraction is difficult to reach the international standards.

目前人们主要从银杏叶中提取银杏黄酮和萜内酯，但由于银杏黄酮和银杏内酯的含量很低，尤其银杏叶中最主要的有效成分银杏内酯B主要存在于根中，在银杏叶中含量极低(＜0.1％)，且是在生长状态的叶中含量最高，采叶影响树的生长；又因银杏叶中主要的有效成分受多种因素的影响又有很大差别，银杏叶革质化、蜡质化程度高，使得国内银杏叶提取物的质量很难达到国际标准。

Autologous MSC can be obtained easily,their source in human are plenty , own active proliferationand potential to difference into chondroblast.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Autologous MSC can be obtained easily, their source in human are plenty, own active proliferation and potential to difference into chondroblast. Now MSC become the chief seed-cell in cartilage tissue engineer, but the technology to stimulate MSC differentiate into chondroblast is not very successful, the standard technology is culture the cell-ball in centrifuge tube, the reconstructured cartilage-like tissue is not achieve the mechanics of hyaline cartilage.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Autologous MSC can be obtained easily,their source in human are plenty , own active proliferationand potential to difference into chondroblast. Now MSC become the chief seed-cell in cartilage tissue engineer , but the technology to stimulate MSC differentiate into chondroblast is not very successful,,the standard technology is culture the cell-ball in centrifuge tube,the reconstructured cartilage-like tissue is not achieve the mechanics of hyaline cartilage.

自体骨髓基质干细胞来源丰富，取材容易，具有旺盛的增殖能力及向成软骨细胞分化的潜能，已成为软骨组织工程的首选种子细胞，但MSC诱导分化为成软骨细胞且应用于软骨组织工程的技术尚不十分完善，目前主要采用的技术为细胞团块离心管培养，其构建的软骨组织在力学性能上很难达到关节软骨的要求。

Well distributed and equiaxed structure can improve the elongation and tensile strength of the wire.The plasticity and strength are well matched under vacuum annealing in the temperature range of 700℃~850℃.

该丝材专用技术条件中对于延伸率的规定十分严格，从俄罗斯Ti-2Al-2.5Zr丝材的实物检测数据看，在保证强度的前提下，延伸率较难达到标准要求。

Having a million postings in the viewers Free Board was unprecedented, which would have been impossible without the the fervent love and devotion of the Damo Fains.

百万条留言这个令人瞠目的成绩！没有&茶母废人&们热诚努力的付出是决难达到的。

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