【摘 要】
:
It was with pain and grieved emotion that I received the news of Professor Amadeus Grabau’s decease some time ago; and I felt, deeply and warmly, that I had l
论文部分内容阅读
It was with pain and grieved emotion that I received the news of Professor Amadeus Grabau’s decease some time ago; and I felt, deeply and warmly, that I had lost a real and faithful friend, one who had been close to me in bright and gloomy periods for very many years. Around his bier were assembled in sorrow
It was with pain and grieved emotion that I received the news of Professor Amadeus Grabau’s decease some time ago; and I felt, deeply and warmly, that I had lost a real and faithful friend, one who had been close to me in bright and gloomy periods for very many years. Around his bier were assembled in sorrow
其他文献
当前,我国经济继续保持平稳快速发展的良好势头,经济增长率在连续4年达到或超过10%的基础上,今年上半年又达到了11.5%。可以预见,在整个“十一五”期间,我国经济增长率都将保
改革开放三十年来,变化最大的无疑是经济体制。而经济体制变化的主要标志,就是私营经济的从“无”到“有”, 从“有”到“大”——或许,现在还很难说“强”。但无论如何,私营
Early in the autumn of 1945 while reviewing the Triassic collections made by the late Messrs. T. Y. Hsu and K. Chen from Kueichou the writer found some beautif
本文作者根据多年英浯教学经验,在教学方法上重视对学生能力的培养。利用学生手中的工具书(字典),采取以“教师为主导,学生为主体”的教学原则进行单词教学已初见成效。
Acc
The lithology of the Carboniferous of eastern Yunnan is highly varied,vertical and horizontal changes of facies being very strong. Thus a study ofCarboniferous
我厂目前使用的 B665牛头铇床没有垂直走刀自动给进机构。加工垂直面、斜面时均需操作者手动进给。如图(图见第28页)进行改革后,按图上所注明的另件,参照下列说明,便可借助
由于过剩生产力,中国经济开始减速。过去5年高速增长的投资热已经占用了未来发展的空间。这轮经济减速至少需要两年时间达到谷底。这种情况对社会稳定实际上是好事。近期的
在环保理念与可持续发展理念的驱动下生态农业旅游越来越被提倡,同时也成为了农业经济的新增长点。从现状来看我国生态农业旅游目前还处于发展期,在部分环节还不够成熟,并未
一、刀具特点:1.刀片可采用切削力夹固或弹性一紧双固,装卸调整方便(见图1、图2);2.刀片基面选用120°定位,刀垫、压块装夹在刀杆20°槽内,定位准确,夹紧牢固;3.刀具前角γ=
栾川县地处豫西伏牛山腹地,总面积371.6万亩,山地占总面积的89%,素有“九山半水半分田”之称。近年来,该县造林绿化迅速推进,全县有林地面积达309.7万亩,活立木总蓄积510万立