| 释义 | 
             
                surface of grade crossing
                
            平交道píng jiāo dào 
 grade crossing平面交叉píng miàn jiāo chā 
 grade crossing浅尝即止qiǎn cháng jí zhǐ 
 scratch the surface of渡航dù háng 
 crossing年级nián jí 
 grade有警察的平交路口yǒu jǐng chá de píng jiāo lù kǒu 
 manned level crossing地表dì biǎo 
 the earth's surface高档gāo dàng 
 top grade碍视交叉口ài shì jiāo chā kǒu 
 blind crossing防滑路面fáng huá lù miàn 
 slippery road surface坡度缓和pō dù huǎn hé 
 grading逐渐变化zhú jiàn biàn huà 
 grade龙骨斜度lóng gǔ xié dù 
 keel grade特等tè děng 
 special grade, top grade锈蚀等级xiù shí děng jí 
 rusting grade黎曼面lí màn miàn 
 Riemann surface球面qiú miàn 
 sphere; spherical surface屈服面qū fú miàn 
 yield surface夷平面yí píng miàn 
 planation surface椎间面zhuī jiān miàn 
 intervertebral surface爬上陡坡pá shàng dǒu pō 
 make the grade评分píng fèn 
 grade; graded; give a mark隶属度lì shǔ dù 
 degree of membership; membership; grade of membership当心行人dāng xīn háng rén 
 Caution!Pedestrians crossing; Beware of pedestrians地貌dì mào 
 physiognomy; relief; landform; the general configuration of the earth's surface
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