轨道 軌道 guǐ dào track (for trains etc) / orbit (of a satellite) / (fig.) a person's established path in life / desired trajectory (of a business or other endeavor) / (audio engineering) track / (quantum mechanics) orbital syn 泥土 ní tǔ earth / soil / mud / clay syn 扭转 扭轉 niǔ zhuǎn to reverse / to turn around (an undesirable situation) / (mechanics) torsion syn 粪便 糞便 fèn biàn excrement / feces / night soil syn 干燥 乾燥 gān zào (of weather, climate, soil etc) dry / arid / (of skin, mouth etc) dry / (fig.) dull / dry / boring / (of timber etc) to dry out / to season / to cure syn 土壤 tǔ rǎng soil syn 流失 liú shī (of soil etc) to wash away / to be eroded / (fig.) (of talented staff, followers of a religious faith, investment funds etc) to go elsewhere / to fail to be retained syn 离合器 離合器 lí hé qì clutch (mechanics) syn 松软 鬆軟 sōng ruǎn flexible / not rigid / spongy / soft or runny (not set hard) / loose (soil) syn 大粪 大糞 dà fèn human excrement / night soil (human manure traditionally used as agricultural fertilizer) syn 推杆 推桿 tuī gān push rod or tappet (mechanics) / putter (golf) / to putt (golf) syn 量子力学 量子力學 liàng zǐ lì xué quantum mechanics 沙土 shā tǔ sandy soil 粪土 糞土 fèn tǔ dirty soil / dung and dirt / (fig.) worthless thing syn 机件 機件 jī jiàn component (mechanics) syn 乡土 鄉土 xiāng tǔ native soil / one's native land / one's hometown / local (to an area) syn 力学 力學 lì xué mechanics / to study hard 红土 紅土 hóng tǔ red soil / laterite syn 地力 dì lì fertility / productivity (of soil or land) syn 整地 zhěng dì to prepare the soil (agriculture) syn 土层 土層 tǔ céng layer of soil / ground level 黄土 黃土 huáng tǔ loess (yellow sandy soil typical of north China) 水汪汪 shuǐ wāng wāng watery / waterlogged (soil) / limpid / bright and intelligent (eyes) syn 水土 shuǐ tǔ water and soil / surface water / natural environment (extended meaning) / climate 马赫 馬赫 mǎ hè Mach (name) / Ernst Mach (1838-1916), German physicist / Mach number (fluid mechanics) 灰土 huī tǔ dust / (soil taxonomy) spodosol syn 耕田 gēng tián to cultivate soil / to till fields syn 盐碱地 鹽鹼地 yán jiǎn dì saline soil / (fig.) infertile woman syn 主轴 主軸 zhǔ zhóu axis / principal axis (in mechanics, optics, botany etc) / main axle (of engine) syn 土方 tǔ fāng cubic meter of earth (unit of measurement) / excavated soil / earthwork (abbr. for 土方工程[tu3 fang1 gong1 cheng2]) / (TCM) folk remedy syn 导轨 導軌 dǎo guǐ (mechanics) guide rail / slideway 流体力学 流體力學 liú tǐ lì xué fluid mechanics / hydrodynamics 冬笋 冬筍 dōng sǔn winter bamboo shoots (smaller and tenderer as a result of being dug out before they come out of the soil) syn 轮作 輪作 lún zuò rotation of crops (to preserve fertility of soil) syn 土地 tǔ dì land / soil / territory / CL:片[pian4],塊|块[kuai4] syn 水土保持 shuǐ tǔ bǎo chí soil conservation syn 干裂 乾裂 gān liè (of dry soil etc) to crack / (of skin) to chap syn 追肥 zhuī féi top soil dressing / additional fertilizer 内耗 內耗 nèi hào internal friction / internal dissipation of energy (in mechanics) / fig. waste or discord within an organization 肥力 féi lì fertility (of soil) syn 松土 鬆土 sōng tǔ to plow (loosen the soil) 墒情 shāng qíng the state of moisture in the soil (and whether it can support a crop) 趟 tāng to wade / to trample / to turn the soil syn 卤 鹵 lǔ alkaline soil / salt / brine / halogen (chemistry) / crass / stupid 惯量 慣量 guàn liàng inertia (mechanics) 壤 rǎng (bound form) soil / earth / (literary) the earth (contrasted with heaven 天[tian1]) syn 土温 土溫 tǔ wēn temperature of the soil syn 壅 yōng to obstruct / to stop up / to heap soil around the roots of a plant 垡 fá to turn the soil / upturned soil / (used in place names) syn 表土 biǎo tǔ surface soil / topsoil 保墒 bǎo shāng preservation of soil moisture 肥田 féi tián fertile land / to fertilize the soil syn 锄地 鋤地 chú dì to hoe / to weed the soil 土壤学 土壤學 tǔ rǎng xué pedology (soil study) 冻土层 凍土層 dòng tǔ céng permafrost / tundra / layer of frozen soil 垄 壟 lǒng ridge between fields / crop row / mounded soil forming a ridge in a field / grave mound syn 墒 shāng plowed earth / soil moisture / furrow 篑 簣 kuì basket for carrying soil 硗 磽 qiāo stony soil 砘 dùn (agriculture) to compact loose soil with a stone roller after sowing seeds / stone roller used for this purpose syn 埴 zhí soil with large clay content syn 板结 板結 bǎn jié soil crusting syn 薄地 bó dì barren land / poor soil syn 劐 huō (coll.) to slit with a knife / (variant of 耠[huo1]) hoe / to loosen soil with a hoe syn 蔂 léi to entwine / creeper / bramble / (literary) basket for carrying soil 蚖 yuán Protura (soil dwelling primitive hexapod) / variant of 螈, salamander / newt / triton 连续介质力学 連續介質力學 lián xù jiè zhì lì xué mechanics of a continuous medium / fluid mechanics 生土 shēng tǔ (agr.) immature soil / virgin soil 土壤生物多样性倡议 tǔ rǎng shēng wù duō yàng xìng chàng yì International Initiative on Conservation and Sustainable Use of Soil Biodiversity / Soil Biodiversity Initiative 东盟各国土壤绘图问题土壤会议 東盟各國土壤繪圖問題土壤會議 ASEAN Soil Conference on the Soil Mapping of Individual Countries 废土 廢土 fèi tǔ waste soil (excavation waste, contaminated soil etc) / (post-apocalyptic) wasteland 牛顿力学 牛頓力學 niú dùn lì xué Newtonian mechanics 三体问题 三體問題 sān tǐ wèn tí three-body problem (mechanics) 天体力学 天體力學 tiān tǐ lì xué celestial mechanics 转动惯量 轉動慣量 zhuǎn dòng guàn liàng moment of inertia (mechanics) 力偶 lì ǒu moment of forces (mechanics) 态叠加 態疊加 tài dié jiā superposition of states (quantum mechanics) 惯性系 慣性系 guàn xìng xì inertial system / inertial frame (mechanics) 波函数 波函數 bō hán shù wave function (in quantum mechanics) 波动力学 波動力學 bō dòng lì xué wave mechanics (physics) 波粒二象性 bō lì èr xiàng xìng wave-particle duality in quantum mechanics 简谐 簡諧 jiǎn xié simple harmonic (motion, oscillation etc in mechanics) 简谐运动 簡諧運動 jiǎn xié yùn dòng simple harmonic motion (in mechanics) / motion of a simple pendulum syn 粘性力 nián xìng lì viscous forces (in fluid mechanics) 粘滑 nián huá slimy (of rotten food) / viscous / stick-slip (in mechanics) 绕流 繞流 rào liú turbulence (in fluid mechanics) 转动轴 轉動軸 zhuàn dòng zhóu axis of rotation (mechanics) / spindle 运动定律 運動定律 yùn dòng dìng lǜ laws of motion (mechanics) 雷诺数 雷諾數 léi nuò shù Reynolds number (ratio of inertial forces to viscous forces in fluid mechanics) 马赫数 馬赫數 mǎ hè shù Mach number (fluid mechanics) 蠕滑 rú huá creep (friction mechanics) 黏滑 nián huá slimy (of rotten food) / viscous / (mechanics) stick-slip 换刀 換刀 huàn dāo tool change (mechanics) 联轴器 聯軸器 lián zhòu qì (mechanics) coupler / coupling 联轴节 聯軸節 lián zhòu jié (mechanics) coupling 轨域 軌域 guǐ yù (Tw) (quantum mechanics) orbital 冷处理 冷處理 lěng chǔ lǐ (mechanics) cold treatment / to downplay / to handle in a low-key way 保商 bǎo shāng preservation of soil moisture 