n.沉积（淀）作用，搁置

双语例句

A model and a application model of coke laydown on inner wall of the coker furnace tube have been developed. 开发了加热炉的炉管内壁结焦模型和结焦应用模型。

All materials that cannot be mounted immediately shall be stored on the laydown yard. 所有不需立即安装的物料都应存放在存储区。

The ways of nurturing students 'creative thinking in classroom teaching include: create situations, laydown suspenses, form questions, induce ideas and motivate mutually and make expansion. 在课堂教学中培养学生创新思维的途径包括：创设情境，设置悬念，适宜提问，思路引导，双向互助以及渗透扩张。

The problems of industry monorail conveying system brought by tradition physical contact such as irregular contact spark, carbon laydown and unsafe, narrow the area which the material handling system can apply to in awful industry environment, e.g. forge, cleaning, lacquering. 在单轨行车物料搬运系统中，传统接触供电方式带来的如不规则火花、碳积、不安全等问题，限制了其在一些如铸造、清洗、喷漆等一些环境条件恶劣的车间中的应用。