您要查找的是不是：
- high and low grade oil shale metallogenic mechanism 貧富礦成礦機制
- A low number; a low grade of oil. 一個(gè)小的數; 低級油
- John is down on his teacher because she gave him a low grade. 約翰恨他的導師，因為她給他打了低分。
- My son mucked up the car engine by using cheap, low grade gasoline. 我的兒子使用便宜的低級汽油,汽車(chē)引擎損壞了。
- Low grades are getting Hellen down. 低分數使海倫悶悶不樂(lè )。
- He is a bit let down by the low grade he got. 這次成績(jì)不好, 他有點(diǎn)氣餒。
- When the K55 grade oil casing lathed thread,the thread flawed. K55鋼級石油套管在車(chē)絲的過(guò)程中,出現斷扣問(wèn)題。
- Low grades are get ting Helen down. 考分很低使海綸悶悶不樂(lè )。
- My son muck up the car engine by using cheap, low grade gasoline. 我的兒子使用便宜的低級汽油,汽車(chē)引擎損壞了。
- The teacher remonstrated with the boy about his low grade. 教師告誡男孩,說(shuō)他的分數太低了。
- My son muck up the car engine by using cheap,low grade gasoline. 我的兒子使用便宜的低級汽油，這把汽車(chē)引擎損壞了。
- Low quality is always a problem; low grade may not be. 質(zhì)量低常成為一個(gè)問(wèn)題，但等級低則不是。
- The production practice showed that the quality indexes of refined walnut oil could reach or excel the demand of the standard for first grade oil. 經(jīng)生產(chǎn)實(shí)踐證明,生產(chǎn)的核桃油各項質(zhì)量指標達到甚至優(yōu)于一級油標準。
- The teacher remonstrated with the boy about his low grades. 教師告誡男孩，說(shuō)他的分數太低了。
- According to the casing service conditions,it is enforced to produce high grade oil casing. 根據套管的服役條件,高鋼級石油套管的生產(chǎn)已是勢在必行。
- Untreated low grade rejection also poses an increased risk for CAV. 為CAV未處理的低等級拒絕也形成增加的風(fēng)險.
- Non Ai lenses can mount on low grade nikon DSLR body??? 用盡舊鏡微距能力，專(zhuān)人指導使用微距濾鏡，拍盡微距世界！
- He tore up his test paper so that his mother wouldn't see his low grade. 他把自己的考卷兒撕了,這樣他的母親就不會(huì )看到他得的低分數。
- Low grades are getting him down. 低分數使他郁郁不樂(lè )。
- He tore up his test paper so that his mother would not see his low grade . 他把自己的考卷兒撕了，這樣他的母親就不會(huì )看到他得的低分數。
