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.Note that supplying connection information does not initiate data definition language ( DDL ) generatio...
It can cast a dark cloud over these forums.它将是的论坛上空布满乌云.You have access to reading the forums, except for private areas.用户可阅读除私密区之外的论坛.The Church teaches that councils are not parish forums or sounding boards.教会的教导是﹐议会不是...
The opprobrium and enmity he incurred were caused by his outspoken brashness.他招致的轻蔑和敌意是由于他出言过于粗率而造成的.He contrasted her brashness unfavourably with his mother’s gentleness.他把她的粗鲁同他母亲的温和相对比。He contrasted her brashness unfa...
At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动.If the roller pulsation, the pressure on paper as cause misregister.如果滚子径向跳不静, 则差纸的不张辛有不小有小,致使套印禁绝.Vortexing ...