变幅

With longger fruit and more key fruits,moreover, the two traits showed significantly positive correlation (r=0.888). Of the 11 floral and fruit quantitative traits, the length and width of perianth segment and 6 other traits were different significantly among the three groups,which were successfully used in group-discrimination by means of the method of principal component analysis.

在所研究的11 个花果数量性状中，花被片长度和宽度等10 个性状在三大类群间差异极显著，主成分分析结果表明第1 主成分(贡献率69.11%)综合了各性状的主要信息，依据第1 主成分可以对三大类群进行区分，其中北美鹅掌楸类群第1 主成分值最大(变幅0.7156～1.3916，平均1.0408)，杂交鹅掌楸类群(变幅-0.0865～0.3959，平均0.2646)居于两个亲本类群之间，鹅掌楸类群(变幅-1.5443～-0.8855，平均-1.2426)最小。

To disease resistance, SP3 (from H1) had stronger ability to resist leaf mold. 4.The characters obtained by space mutation were easier to be stable. The results showed that, the differences of the flowering dates of 1st inflorescence, the positions of 1st inflorescence, number of leaves between 1st and 2nd inflorescences in the colony were decreased with the development of generations. Most of these heritable characters could be stable in SP3 and a few could be stable in SP4, 2~3 generations earlier than that of traditional breeding (The characters were stable in 6 generations.).

试验结果表明，植株的第一花序开花期、植株的第一花序节位、第一至第二花序间隔叶数及产量的株间变异（变幅、标准差和变异系数），随着世代的递增而降低，大部分株系的变异性状从SP3后就稳定遗传，少数株系的变异性状从SP4后才稳定遗传，比一般常规育种的6个世代开始稳定，可提早2～3个世代，经地面定向选择能较快选出综合性状优良的目标株系。

The hoisting, derricking and slewing mechanism, the extension and contracting of booms, the setting down and back of outriggers, all are driven hydraulically.

该机的起升、变幅、回转、吊臂伸缩及支腿收放等机构，全部采用液压驱动。

Lifting machine, luffing, Rotary and other organizations, all of the motor-driven.

该机的起升、变幅、回转、等机构，全部采用电机驱动。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。