查询词典 once every four years

four-level laser material：四能级激光材料

four-level laser 四能级激光器 | four-level laser material 四能级激光材料 | four-level laser rod 四能级激光棒

four-bar linkage：四连杆机构

four-band multispectral scanner四波段多光谱扫描仪 | four-bar linkage四连杆机构 | four-bar mechanism四连杆机构

four-bar linkage：四连杆组

"四连杆运动链","four-bar chain" | "四连杆组","four-bar linkage" | "球面四连杆组","four-bar linkage spherical"

four cycle logarithmic scale：四阶对数比例尺

four cycle engine 四冲程发动机 | four cycle logarithmic scale 四阶对数比例尺 | four electrode dipmeter 四电极地层倾角测井仪

four molter：四眠蚕

four elements fertilizer 四要素肥料 | four molter 四眠蚕 | four way cross 四元杂交

Four o'clock：紫茉莉

four-letter 庸俗的 | four-o'clock 紫茉莉 | four-part 四部

four skandhas outside of form：四無色蘊

four sins of speech 口四 | four skandhas outside of form 四无色蕴 | four stages in the attainment of buddhahood 四阶成佛

four-word-deep pash stack：四字堆栈

four-wired terminating set | 四线端接装置 | four-word-deep pash stack | 四字堆栈 | four-word-deep pop stack | 四字堆栈

four point small angle diagram：四点小角衍射图

four point resistivity test system 四探针电阻率测试系统 | four point small angle diagram 四点小角衍射图 | four pole 四极

roller-skate to work：滑轮滑上班

90. *换上正装 change into smart clothes | 91. *滑轮滑上班 roller-skate to work | 92. *四英里的路程 a journey of four miles / a four-mile journey / four miles' journey

room-sealed gas water heater：密封式气体热水炉

roofway 屋顶通道 | room-sealed gas water heater 密封式气体热水炉 | rose wood 花梨木

Jambu, jambul;Eugenia javanica L.;Malay apple;mountain apple：莲雾

蒲桃(广东新语) Jambosa vulgaris DC.;Eugenia jambosa Alston | 莲雾 Jambu, jambul;Eugenia javanica L.;Malay apple;mountain apple | 堇菜色 janthine