作业帮大家帮我分析下下面三个英语句子吧,
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/04/30 14:43:14
大家帮我分析下下面三个英语句子吧,
1.Machine tool frames are generally made in cast iron ,although some may be steel casting or mild-steel fabrications.
2.To avoid massive sections in casting ,carefully designed systems of ribbing are used to offer the maximum resistance to bending and torsional stresses.
3.These elements may be used separately or combined in various ways according to the applications.
1.Machine tool frames are generally made in cast iron ,although some may be steel casting or mild-steel fabrications.
2.To avoid massive sections in casting ,carefully designed systems of ribbing are used to offer the maximum resistance to bending and torsional stresses.
3.These elements may be used separately or combined in various ways according to the applications.
她已经在三个不同的场合被警告,她的业务水平不够好.
that引导的是宾语从句.做warn的宾语.
warn的用法
warn sb. of sth.警惕某人做某事
warn sb. against sth.警惕某人不做某事
warn sb. (not) to do sth.警惕某人（不）做某事
warn sb. that...后面跟宾语从句
that引导的是宾语从句.做warn的宾语.
warn的用法
warn sb. of sth.警惕某人做某事
warn sb. against sth.警惕某人不做某事
warn sb. (not) to do sth.警惕某人（不）做某事
warn sb. that...后面跟宾语从句