试产

tóng chǎng zuó tiān tóu liào shì chǎn

铜厂昨天投料试产。

The copper mill performed a trial-production run yesterday.

nǐ yīng gāi duì gōng sī shǒu jī yán fā shì chǎn hé liàng chǎn de zhì liàng fù zǒng zé

你应该对公司手机研发、试产和量产的质量负总责。

You should be responsible for the quality of handset research and development, trial-produce and output. .