d t是什么意思

d t中文什么意思

d: CD ＝ 400. DC ＝ 600.
t: 中世纪罗马数字的160。
'd: 〔口语〕 1.＝ had: I'd ... ＝ I had .... 2.＝ did: Where'd ... ＝ Where did .... 3.＝ should (或 would): He'd ... ＝ He should (或 would). 4.＝-ed: foster'd.
a and d: 入院和出院
a d: disk]重折光盘; 放弃的; 是一组对立项; 重折光盘,暗带

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深圳市今视通数码科技有限公司copyright2005 - 2006
Livingstone d j , manallack d t , tekto i v . data modeling with neural networks : adventages and limitations [ j ] . comput aided mol design , 1997 ( 135 ) : 11
阎平凡,张长水.人工神经网络与模拟进化计算[ m ] .北京:清华大学出版社, 2000
In most cases , it was found that the jb criterion is safer than hg specification , but adverse result was obtained when r / r is close to 0 . 8 and d / t is too small ( less than 40 ) . code in c language was worked out for simplifying the calculation
在大多数情况下，按照jb标准对此种结构进行补强设计时其安全裕度要比hg标准为高；但是当开孔率接近0 . 8且d t很小时(不大于40 ) ，依jb标准补强设计后的安全裕度反而较按hg规范计算结果要小。

d t中文什么意思