• 结果表明,全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标,其含量能更好地反映土壤肥力状况。

    The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.

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  • 初植密度对落叶松人工林的纤维形态特征、物理特征及化学特征有重要的影响,除生长轮宽度外,其它各指标差异显著;

    Planting density has significant effects on fiber morphology, physical and chemical properties of Lalix olgensis wood. Except growth-ring width, remarkable differences was found in other indexes.

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  • 水土保持林有效覆盖率是水土保持林建设中的一个重要指标。

    Effective cover rate for soil and water conservation forests is an important index in the construction of forestry.

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  • 同时文中给出了松嫩平原西部速生丰产林的防治指标。

    At same time, the paper has also given the control index of fast-growing and high-yield plantation in the west part of Songnen plains.

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  • 朗斯代尔第一次接收信息时,比尔柯林斯未能将其破译出来,因为这份电讯中没有密码指标组。

    The first time Lonsdale received a message, Bill Collins was unable to decipher it. There was no indicator group in the traffic.

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  • 在单位面积蓄积量的标准划分时充分考虑到了不同林型标准不同,进而分林型进行指标标准的划分。

    We took different forest types with different standards into account when dividing by stocking volume per unit area. Therefore, we should consider forest types as an indicator standard further.

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  • 布林线技术指标和移动平均包络线相同,但是不同是外部布林线是怎样创建的。

    A Bollinger band technical indicator looks similar to the moving average envelope, but differs in how the outer bands are created.

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  • 同时文中给出了松嫩平原西部速生丰产林的防治指标。

    At same time, the paper has also given the control index of fast-growing and high-yield plantation in the west...

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  • 结果表明:在现有技术经济指标的情况下,利率为5%时杉木人工林经济成熟龄为17年。

    The results show that: in existing technical and economic indicator situation, the age at economic maturity of Chinese fir plantations is 17 years when the interest rate is 5%.

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  • 研究了人工林马尾松的纤维零距抗张强度、细胞壁的纵向弹性模量和硬度等力学指标。

    The tensile strength, modulus of elasticity(MOE) and hardness of Pinus massoniana fibers were determined by using zero-span tension and nanoindentation technique.

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  • 结果表明:该竞争指标对杉木人工林适用,所建立的单木生长模型符合精度要求,可用于预估林分生长。

    Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.

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  • 在林隙透光后,各项调查指标有一定程度的增加,怛具有明显的阶段性。

    All indexes under investigation increase to some extent, but show obvious stages.

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  • 以辛弗林为对照品,用UV测定洗脱液中总生物碱的含量作为考察指标,确定最佳工艺参数。

    UV was used to determine the process parameters by compared with synephrine, and the content of total alkaloids from eluent as criteria.

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  • 背斜、穹隆和次级断裂控制矿体,地球化学指标与卡林型金矿相似。

    Gold ore bodies are structurally controlled by domes, anticlines and second order faults. This type of gold deposits is similar to the Carlin gold deposits u.

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  • 为此 ,用基于验算点处展开泰勒级数的哈桑———林德法计算了轴心压杆稳定可靠性的可靠性指标 ,并同均值一次二阶矩法作了比较 。

    The result obtained has been compared with the one obtained by first order second moment (FOSM) method expanded about mean value.

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  • 为此 ,用基于验算点处展开泰勒级数的哈桑———林德法计算了轴心压杆稳定可靠性的可靠性指标 ,并同均值一次二阶矩法作了比较 。

    The result obtained has been compared with the one obtained by first order second moment (FOSM) method expanded about mean value.

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