XRD and SEM are used to analyze hydration-hardening mechanism of the compound system.

并通过XRD、SEM对复合胶凝体系水化、硬化机理进行分析。

youdao

Menthol is a compound extracted from mint oils or produced synthetically that activates cold-sensitive neurons in the nervous system.

薄荷醇是一种从薄荷油中提炼或合成的一种混合物，它可以刺激大脑神经系统中对冷敏感的神经细胞。

youdao

Compound sentence: the system shall be able to display the elapsed time for the car to make one circuit around the track, and the time format shall be hh: mm: ss.

并列句：系统应能显示车沿跑道绕行一圈花费的时间，且时间的格式应是hh： mm： ss。

youdao

"The fact that they couldn't tell the difference between a CIA guesthouse and the IOM compound shows that their system of command has been weakened, that it's no longer that effective, " he said.

WSJ: Taliban Assault Shakes Kabul

The resulting compound is easily spotted by the infant's immune system.

FORBES: Magazine Article

This binding process stimulates production of a protein called interleukin-10 (IL-10) that acts as an anti-inflammatory compound and which helps keep the immune system's response to the infection in check.

ECONOMIST: Drug-resistant infections