installation and trial run

例句：

1. 1.The new computer was installed yesterday.
   新电脑昨天安装好了。
2. 2. The engineers were installing the new equipment in the factory.
   工程师们正在工厂安装新设备。
3. 3. The installation process requires careful planning and execution.
   安装过程需要仔细规划和执行。
4. 1. Before launching the new product, we conducted a trial run to ensure it works as expected.
   在推出新产品之前，我们进行了一次试验运行以确保它按预期工作。
5. 2. The engineers performed a trial run on the new machine before finalizing its design.
   工程师们在最终确定机器设计之前对新机器进行了试验运行。
6. 3. The company decided to conduct a trial run of their new software before making any major changes.
   公司决定在做出任何重大更改之前先进行软件的试验运行。