S
sand casting 砂型铸造
satisfactorily[7sAtis'fAktrili] adv. 满意地
saw[aC:] n. 锯子
scale[skeil]n. 硬壳
score[skC:] v. 刻划
scrap[skrAp] n.废料, 边角料, 切屑
L2,3
screwcutting 切螺纹
seal[si:l] vt.密封
secondary storage
section cutting plane 剖切面
secure[si'kjuE] v.固定
secure[si'kjuE] vt.紧固,夹紧,固定
L5,22
segment['se^mEnt] v. 分割
sensitive['sensitiv]a.敏感的
sequence ['si:kwEns] n. 次序
sequential[si'kwenFEl] a.相继的
seriously['siEriEsli] adv.严重地
servomechanism ['sE:vE'mekEnizm] n.伺服机构
Servomechanism Laboratoies 伺服机构实验室
servomotor ['sE:vEmEutE] n.伺服马达
L8
setter ['setE] n 安装者
set-up 机构
sever ['sevE] v 切断
severity [si'veriti] n. 严重
shaded[FAdid] adj.阴影的
shank [FANk] n. 柄.
shear[FiE]n.剪,切
shot[FCt] n. 注射
shrink[FriNk] vi. 收缩
side sectional view 侧视图
signal ['si^nl] n.信号
similarity[simi'lAriti] n.类似
simplicity[sim'plisiti] n. 简单
single-point cutting tool 单刃刀具
situate['sitjueit] vt. 使位于,
使处于
slide [slaid] vi. 滑动, 滑落
slideway['slaidwei] n. 导轨
slot[slCt] n. 槽
slug[slQ^] n. 嵌条


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