查询词典 valuable

Leave structure of gymnosperm is less changable than that of angiosperm, and thus it is valuable in classification.

裸子植物的叶在结构上比被子植物的叶变化较少，而且不受环境的影响，具有一定的分类学价值。

These above problems, which are very important and valuable in agricultural crops area monitoring, are currently less researched. Hence, in this paper, seven types of common texture and five vegetation indices were respectively added into TM multispectral bands to classify using three different methods, which are Minimum Distance, Maximum Likelihood and Support Vector Machine, and analyze the effect on winter wheat identification accuracy by comparing the classification results. The contexture include Mean, Variance, Homogeneity, Contrast, Dissimilarity, Entropy, Variance, Angular Second Moment and Correlation, and the vegetation indices are RVI, SAVI, RDVI, NDWI and SLAVI.

为此，该文将平均值、方差、均一性、反差、相异性、熵、角二阶矩、灰度相关7种纹理信息以及比值植被指数、土壤调整植被指数、重归一化植被指数、植被液态水含量指数、有效叶面积植被指数5种植被指数信息分别加入到TM多光谱数据中，同时还进行了最佳波段选择，利用最小距离、最大似然和支持向量机3种方法进行分类提取小麦，研究了不同特征信息对小麦测量精度的影响。

The production of valuable pharmaceutical proteins via the lactating mammary glands of transgenic anima...

通过转基因动物的乳腺生产有价值的药物蛋白是药物生产的一种新模式。

Existing research results in various oceanatmosphere coupled models are comprehensively analyzed based on three aspects: the impact of SOFF on global thermohaline circulation and sealevel change and the propagation path of anomalous signal induced by SOFF. A wide range of different viewpoints on the SOFF are summarized; controversial questions are discussed and valuable research directions in the future are suggested. Furthermore, a perspective on the research prospect of this topic under global warming is provided.

从南大洋淡水通量异常对热盐环流和海平面变化的影响以及异常信号传播路径等3个方面系统分析了各种海洋-大气耦合数值模式的已有研究结果，总结了与这一问题有关的各种不同学术观点，对目前存有争议的问题进行了讨论，并对未来有价值的研究方向和全球变暖背景下这一问题的研究前景进行了展望。

The anthracite is the most valuable type of coal.

无烟煤是一种最有价值的煤，它燃烧慢，烟很少但火焰却很大。

First of all, products that contain antioxidants are valuable for their antiaging properties.

首先，该产品含有抗氧化剂是珍贵的抗老化性能。

A:If you often go to an antique shop,you may chance on a valuable item.

如果你经常到古远店去转悠，你有可能会偶然撞见一件很有价值的东西

This is an antique. It's too valuable.

这是个古董，太有价值了。

That's a very valuable antique.

那是很珍贵的古董。

The painting is valuable because of its great antiquity.

这幅画值钱是因为它很古老。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。