According to different sweeping rules, a method for constructing a sweep type surface by means of coordinate transformation and blending is described.
提出了用矩阵变换和混合的方法，构造多种由相关曲线依据不同的扫掠规则生成的扫掠曲面。
In this type of GC, only the mark and sweep phases of GC are run.
在这类GC内，只运行GC的mark和sweep阶段。
A. Surface Closers: BHMA A156.4; rack-and-pinion hydraulic type with adjustable sweep and latch speeds controlled by key-operated valves and forged-steel main arm.
外露的闭门器：BHMA A156.4，齿条和小齿轮和液压式可调闩锁速度，由钥匙阀和锻造钢铁主臂控制。
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