landing n. 1.登陆;着陆,降落;下车。 2. 登陆处;(飞机)着陆地;码头;(车站的)月台。 3.【建筑】楼梯平台;梯台;【林业】集材场,贮木场;【矿物】装卸台。 4.【无线电】(电子的)沉陷,沉淀。 make [effect] a landing 登陆;着陆。 make a forced landing 强迫降落,迫降。 make a safe landing 安全降落。 make a soft landing 软着陆。 Happy landing! 祝旅途平安〔送行者向上飞机的人告别语〕。
reference n. 1.(对委员、审查人等的)委托;委托项目[范围]。 2.说到,论到,提到。 3.参考;参考书;附注,引证;基准,依据;关系。 4.(关于人品、能力等的)查询,咨询,询商;可供查问的人;证明人,介绍人;(身份、能力等的)证明书,介绍书,服务经历,鉴定书。 5.参看符号〔如 asterisk[*e], obelisk ?, section§, parallel‖, paragraph π等〕 (=reference marks)。 the commission's terms of reference 委员会的职权。 R- was made to me. 提到了我;所指的是我。 You make no reference to your plan in your letter. 你信里没有提到你的计划。 a book of reference=a reference book 参考书。 Who are your references 你的证明人都是谁? bear reference to =have reference to. give a reference to 提到,介绍。 have reference to 和…有关系。 in reference to 关于。 load one's pages with references (在著作中)引用大量参考资料[文献]。 make reference to 说到,涉及,提到;参考;查问;介绍。 with reference to 关于。 without reference to 不管,不论(without reference to age or sex 无论男女老少)。 vt. 加注,附加注脚;给(书等)列出参考书目[注明资料来源]。
The soil in copper - ore - tailings reservoir was compared with that in reference lands to find out the differences between them in physical and chemical natures and in heavy metals pollution 通过合理选择不同对照地,从土壤的理化性质、被污染程度比较,为尾矿库复垦的土壤改良提供依据。
In conclusion , by the setting and application of double series of reference land units , we can get reasonable classification results ; moreover , the reference land units method has some study and application values which can provide as a reference method or model for other counties in china 总之。优质、劣质双向式标准样地体系的建立与应用,不仅能够得到可靠的分等结果,而且具有一定的研究与应用价值,可为我国县域样地法分等提供方法与模式参照。
These imply that the spatial distributions of the different grades of the arable land , classified by the reference land unit method , reflect reasonably the spatial changes of geomorphological units and soil types . the linear estimation model between comparable productions and the corresponding quality ratings of 210 sample units shows that the coefficient of determination r2 is 0 . 876 , which means that 87 . 6 % of the change of y is explained by the change of x . it is concluded that the arable land quality ratings calcul ated by the method can reflect the biologic productivities of land 另外,利用210个样点单元的标准粮产量( y )与其对应样地法土地质量分( x )进行线性拟合,判定系数r ~ 2等于0 . 876的含义是指y的变异中有87 . 6是由x引起,表明了样地法土地质量分的高低较好地反映了耕地的生物生产力水平。