问答题

浇注温度不合理对铸件质量的影响情况有哪些？

【参考答案】

：（1）浇注温度过高对铸件质量的影响；（2）浇注温度过低对铸件质量的影响；（3）同包铁液浇注多件对铸件质量的影响。

(↓↓↓ 点击下方‘点击查看答案’看答案解析 ↓↓↓)

<上一题目录下一题>

热门试题

问答题

Read the following paragraphs and identify what the italicized words refer to. The invention of the Internet is definitely a boon to mankind. It has made life more comfortable and easy. Be it search engines, collaboration software or social media platforms, a few keystrokes and you get to know everything happening around the world. This is a huge transformation compared to the lives that we have been leading two or three decades back. The emergence of portable computers and smart phones has accelerated the shift from the traditional office environment to more diversified workplaces. 1. It (Line 1) ________________________________________ 2. This (Line 3) ________________________________________

单项选择题

草花花坛通常会选用下列哪种花卉（）。

A．榆叶梅
B．矮牵牛
C．连翘
D．小叶丁香

相关试题