状颗粒 flat-plate type bulkhead: 平面舱壁air type flat plate collector: 气式平板集热器flat plate-type heat exchanger: 平板式换热器flat grain: 平木纹; 平纹理; 平型木纹flat-grain: 弦切面纹理下载手机词典可随时随地查词查翻译