由于壳体的厚度有限，壳体的金属能加工制备与模板建造需要特别细心与精确。
Construction of the formwork and preparation of the metal reinforcement for shells required particular care and accuracy because of their limited thickness.
混凝土采用预拌混凝土，混凝土用搅拌运输车送至施工现场后用混凝土输送泵压送至模板内，其摊铺厚度应高于设计厚度15～20%。
The concrete are pre-mixed concrete, delivered to site with mixer car and then pumped into forms. The paving thickness shall be 15~20% higher than the designed value.
为了使系统能适应不同厚度器件的对准，设计了长工作距离的显微镜头并使用透明模板。
The microlens with long work distance is designed and a transparent template is adopted in order to accommodate accurate aligning of devices with various thicknesses.
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