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- soil surface heating agent 土面增温剂
- This creates mulch on the soil surface. 这可以在土地表面形成覆盖物。
- Average surface heat transfer coef. 平均换热系数
- The high-density construction in the urban areas makes the soil surface almost impermeable, which leads to an ecological unbalance in the sot, the heat island effect etc. 摘要城市里大量的建筑,不透水铺地与沥青路面取代原有地表,致使城市地基中普遍含水量不足、土壤内部生态失去平衡。
- Desplay => Contours => Wall fluxes => Surface heat transfer coef. 选择有关的流-固表面即可显示和输出传热系数。
- Lastly, the surface heat source/sink are discussed briefly. 最后还简要地讨论了本区地表的冷热源状况。
- The distance of the water table below the soil surface must be adjusted. 必须调整土壤表面以下水位的距离。
- The efficiency that black mulch increases soil temperature, that is, transfers heat from the mulch to the soil, can be improved by optimizing contact between the mulch and the soil surface. 黑色塑料薄膜提高土壤温度的效率(即把热能从薄膜传递到土壤)可以通过使薄膜与土表最适的接触来提高。
- In our experiment desirable results were obtained by covering the soil surface with plant ash and fine sands. 经试验,用草木灰和细砂覆盖地面的方法,造成干燥的生态条件,对控制发生效果显著;
- Herbs, perennial, acaulescent or shortly caulescent, ascending, rosette but rarely closely appressed to soil surface. 多年生草本,无茎或短茎,上升,莲座丛但很少紧密地贴伏于土表。
- Surface heating provides temperature maintenance for vicious products and condensation control for hydroscopic granular or air-borne media. 表面加热系统可以维持容器温度,从而防止内部液体或气体介质凝固。
- Mulches prevent crusting of the soil surface, thus improving the absorption and movement of water into the soil. 覆盖物可以防治土壤表层板结,使水份容易被土壤吸收。
- At top speeds, the surface heat of the airframe could reach 900 degrees Fahrenheit. 以最快速度飞行时,机身表面温度可达华氏900度。
- Fig. 4. Pycnidiospore survival of Didymella bryoniae placed at soil surface, 5, 15, and 30cm below ground at field. 四、在土壤表面、地表下5、15及30公分土壤深度的瓜类蔓枯病菌柄孢子存活情形。
- The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted. 研究了不同兑水量情况下,除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
- Indeed the ecology is destructed continuously and the soil surface nutrition is also washed out. 于自然生态环境中,生态演替和气候转变不断在进行,但速度是相对缓慢的。
- The results show that the distributions of the surface heat fl ow density and temperature around tube billets are relative. 计算结果表明,管坯表面热流密度沿周向分布的不均匀性造成了管坯温度沿周向分布不均。
- Area of existing vegetation con't. seed to the soil surface where they may compete with the new native grass plantings. 现有植被种子不可落在土壤的表面,因为他们将会与新的天然牧草争夺养分。
- Conclusion The real HTC of the main thermostatic region is affected by surface heat dispersion and wiring holes of transpiration container. 结论:蒸发舱表面散热与舱体布线孔明显影响主温区库体的传热系数实测值。
- Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface. 直根长圆筒状的,根深具一纤细和拉长的茎达土壤表面。
