英语语法分析

Skyjack publishes the machines' theoretical gradeability at 50 percent.

Skyjack公布出机器的理论爬坡能力在50%。

Hydraulic double drive, 3-stage infinitely variable speeds and good gradeability.

全液压双驱，三档无级变速，爬坡能力强。

The gradeability of full-wheel driving vibratory rollers is related to its power, and restricted by cohesive factor.

全液压振动压路机的爬坡能力与动力有关系，并受到附着系数的限制。