螺丝头

support pillar

撑头

30.落撑头(Support Pillar)时应注意不要与顶针及顶棍孔干涉,要用螺丝把撑头和底板收在一起. 设计应平衡地承托B板. 31.画模图时,应将产品图乘缩水,并将产品图镜像(Mirror)一次. 在前模应把不属于前模的线条删掉,在后模应把不属于后模的线条删掉.

screw plug

头塞

runner lock pin 流道拉梢 | screw plug 头塞 | set screw 固定螺丝

Screw jack

螺丝千斤顶

screw head 螺钉头 | screw jack 螺丝千斤顶 | screw mixer 螺旋式混合机

set screw

固定螺丝

screw plug 头塞 | set screw 固定螺丝 | shedder 脱模装置

machine screw counterbores and countersinks

小螺丝用轧齿边截断器

b3502 渐开线齿轮轧齿边截断器 involute gear milling cutt... | b3503 小螺丝用轧齿边截断器 machine screw counterbores and countersinks | b3505 六角螺栓头用轧齿边截断器 counterbores for hexagon socket head...

ball peen hammer; raising hammer

圆头铁锤

圆头螺丝 round head screw | 圆头铁锤 ball peen hammer; raising hammer | 圆瓣图 pie chart

coach screw

方头螺钉,六角螺钉

clamp screw 制动螺丝 | coach screw 方头螺钉,六角螺钉 | conveyer screw 螺旋输送机

ball pein hammer; raising hammer

圆头铁锤

圆头螺丝 round head screw | 圆头铁锤 ball pein hammer; raising hammer | 圆瓣图 pie chart

needle bar thread guard screw

针杆拦线板螺丝

needle bar connecting stud 天心主头 | needle bar thread guard screw 针杆拦线板螺丝 | needle bar thread guard 针杆拦线板

socket screw wrench

内六角螺丝扳手

socket screw key ==> 凹头螺钉键 | socket screw wrench ==> 内六角螺丝扳手 | socket share ==> 盒形犁铧

McKenna：麦肯纳(姓氏)

officers n.政府官员, 军官, 警官, 船长vt.指挥 | mckenna 麦肯纳(姓氏) | disappointing adj.使人失望的, 令人失望的

rapid：激流

他们穿过很多美丽的峡谷,绕过无数大瀑布(cataract)、激流(rapid)和瀑布(waterfall). 带着仅有的两艘船,和几乎完全耗尽的给养,剩余的六个人终于到达了维尔京河(Virgin)的摩门教定居点. 这里,是他们一百天探险的终点.