The model consists of four layers - DDL, DML, DPL and CL.该模型分为数据定义层DDL、 数据操纵层DML 、 数据显示层DPL和控制层CL四层, 这里重点阐述了DDL和DML层.Availability of database definition language ( DDL ) and database manipulation language ( DML ) in DAO ...
Stalin's methods had industrialized the Russian economy.斯大林采取的措施使俄国经济实现了工业化。Pollution is the price we pay for an overpopulated, over industrialized planet.污染就是我们为这个人口过密, 过度工业化的星球所付出的代价.One of the last food - process...
Receding gums can be the result of disease or simply incorrect brushing.牙龈萎缩可能是疾病导致的，也可能仅仅是错误的刷牙方式引起的。Such a view rests on a number of incorrect assumptions.这样的观点建立在很多不正确的假设之上。Gershwin's lyrics would today probably ...
Their belts are pulled tight against their bony frames.他们的腰带紧紧裹着瘦骨嶙峋的身体。He poked a long bony finger in Billy's chest.他用细长的手指捅了一下比利的胸口。He eats so little that he is bony.他吃得太少,瘦得只剩皮包骨....
一般传统的半导体微晶片运作的基础,是19世纪的 [ 古典 ] 电磁理论.CONVENTIONAL SEMICONDUCTOR microchips operate based on " classical " 19 th - century theories of electromagnetism.例如, 我们可以使用微晶片来捕捉 、 动以及操控原子云.In particular, we can now trap, move and m...
I get an extra £2,700-a-year London weighting.我每年得到2,700英镑的伦敦地区额外津贴。Each of the factors is given a weighting on a scale of 1 to 10.每种因素按1至10之间的数值加权。The spring constant is replaced by the weighting function.弹簧常数用权重函数代替....
伯特兰德假如仍旧疑心忡忡, 也许会从感情方面施加压力,从她身上探出真情.If Bertrand were still suspicious, he might worm the story out of her by emotional pressure.尽管如此,他们的反应仍是混淆不堪, 既引以为乐,又疑虑忡忡.But their reactions have been mixed, ranging from delight to s...