钻头

three-lipped drill

三缘钻头

three-lip keyway cutter ==> 三面刃键槽铣刀 | three-lipped drill ==> 三缘钻头 | three-lipped twist drill ==> 三缘麻花钻

three-grooved drill

三槽钻头

three-groove chucking reamer ==> 三槽机用铰刀 | three-grooved drill ==> 三槽钻头 | three-group method ==> 三组法

three-blade bit

三刮刀钻头

three-band photographic ratio method 三波段相片比值法 | three-blade bit 三刮刀钻头 | three-channel amplifier 三通道放大器

tapping drill

螺孔钻头

tappet 挺杆 | tapping drill 螺孔钻头 | tapping knife 割胶刀

two-step taper shank drill

两级锥柄钻头

Two-Star 二星白兰地 | two-step taper shank drill 两级锥柄钻头 | two-storage temperature refrigerator 双温冰箱

straightway drill

直槽钻头

straightway cock ==> 直通旋塞 | straightway drill ==> 直槽钻头 | straightway setup ==> 串列式布置

stop drill

钻头

stop down ==> 光阑缩小 | stop drill ==> 钻头 | stop drum ==> 碰停鼓,止动鼓

drill stop

钻头定程停止器

drill stock ==> 钻柄 | drill stop ==> 钻头定程停止器 | drill string ==> 钻柱

star drill

星形钻头

星形三角起动器 star delta starter | 星形钻头 star drill | 星形轮进行、给装置 star feed attachment

spoon bit

勺形钻头

spontaneous mine fire 矿内自燃火灾 | spoon bit 勺形钻头 | spotting hoist 档绞车

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant