优良

This study can provide references and make ready for introducing good Jack Pine families from North America scientifically and constructing good seed production area.

本项研究可为科学地从国外引进优良班克松家系、建立优良的种子园提供参考和做好准备。

Under the action of excellent memory cell, the search of algorithm to global optimum is rapid and effective.

该算法的核心在于保持种群的多样性和执行强化学习及弱小保护策略，算法不仅保持了优良抗体在进化中的主导地位，而且充分发掘强成长性抗体的寻优潜力，在优良记忆库的作用下，算法对全局最优的搜索快速且有效。

Superior natural condition and good species, provided the good inborn condition for the formation of good quality in longjing.

优越的自然条件和优良品种，为龙井优良品质的形成提供了良好的先天条件。

The performance and mechanism of corrosion inhibitions of POCA were studied bymethods such as weight-loss, electrochemistry, EDS, XPS and quantum chemistry. It isfound that POCA is cathodic corrosion inhibitor, having synergistic effect with HEDP andZn~(2+). The P and O atoms of phosphono have important electron density contribution toHOMO orbital and the electron gross orbital population is bigger than 1, so it is easy toform absorbing location between phosphono and metal resulting in good corrosioninhibition on mild steel.

通过利用失重法、电化学方法、扫描电镜、X光电子能谱、X-射线能谱和量子化学方法研究膦酰基羧酸的缓蚀性能及其机理，发现POCA是一种阴极型缓蚀剂，与HEDP、Zn~(2+)具有优良的协同增效作用；POCA分子中的膦酰基基团的P原子和O原子对HOMO轨道电荷密度贡献较大，且其轨道电子布居数均大于1，因此比较容易通过膦基与金属形成吸附位而对碳钢具有良好的缓蚀作用；对铜合金具有一定的腐蚀作用，但腐蚀作用比HEDP等有机膦药剂要小得多，同时与BTA具有优良的相容性，添加1mg／L的BTA则可以有效地防止铜合金的腐蚀。

In the process, we become stronger in the faith, purer, freer, and better disciplined like a good soldier who is an overcomer and a victor.

在这个过程中，我们的信心变得越来越强、越纯、越自由、也越优良；训练得就像一位优良的士兵一样，成为克服者与胜利者。

As a excellent tree species in the Pinus pinaster, slash pine is provided with fine biological characteristics and economic value.

湿地松有有优良的生物学特性和经济价值，是松属中的优良树种。

ABSTRACT Laiwu Black is one of Chinese native pig breeds, which has excellent germplasm properties such as high prolificacy and good meat quality.

莱芜猪是我国优良的地方猪种资源之一，具有繁殖力高、肉质优良等宝贵种质特性。

ABSTRACT Laiwu Black is one of Chinese native pig breeds, which has excellent germplasm properties such as high prolificacy and good meat q...

莱芜猪是我国优良的地方猪种资源之一，具有繁殖力高、肉质优良等宝贵种质特性。

The range of Masson Pine in China can be divided into Southern, Middle and Northern provenance zone by cluster analysis. Nineteen and six superior provenances were respectively selected for pulpwood and building timber, most of which were from Southern provenance zone with some from Middle provenance zone.

根据种源聚类结果，可将马尾松划分为南部、中部和北部3个种源区，并分别纸浆材和锯材筛选出19个和6个优良种源，这些优良种源主要来自马尾松的南部种源区，部分来自中部种源区。

The yield and tensile strength are 300-365 MPa and 430-480 MPa respectively with the elongation of 29%-35%.The sharpy V-notch imp...

在几乎不增加冶金成本的前提下，试制钢板具有优良的强度、塑性配合，优良的低温韧性水平。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。