convex arc bottom 凸圆弧底
Processing: etching, incised, corrosion intaglio bottom concave, convex, word word etching paint, color code, color card stickers.
加工方式：蚀刻、阴刻、蚀凹纹底、凹字、凸字蚀刻烤漆、上色、卡典贴色。
The most obvious response of building under uneven settlement occurs at the bottom story; and its ability to resist down concave deformation is stronger than that to upper convex deformation.
不均匀沉降作用下建筑物底层反应最明显，且抵抗下凹变形的能力比抵抗上凸变形的强；
To transport convex mold and heated setting mold, above them there are some intervals, every bottom of concave groove has hole connected with the interval.
转移凸模和热定型凸模上方设有空腔，其各个型腔底面设有气孔与空腔连通。
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