spacing drill
spacing drill 双语例句
According to the injection principle, because of the entrainment of high-speed fluid, the waste gas and the rock powder returning to the circular spacing between the drill bit and the hole wall is entrained from the re-absorption spacing to the drill bit accepting cavity, and is mixed with the high-speed air flow from the spline housing injection spray nozzle in the drill bit mixing spray nozzle, to form the mixed jet fluid.
根据引射原理，由于高速流体的卷吸作用，将钻头与孔壁间环状间隙上返的废气和岩粉从重吸收间隙处卷吸到钻头接受腔内，并和来自花键套引射喷嘴的高速气流于钻头混合喷嘴内混合，形成混合喷射流体。
A reverse circulation drill bit is provided with a drill bit accepting cavity and a drill bit mixing spray nozzle; re-absorption spacing is arranged between a spline housing and the reverse circulation drill bit; the spline housing is provided with a spline housing injection spray nozzle; the spline housing injection spray nozzle is communicated with an air exhaust channel between the reverse circulation drill bit and the spline housing; the drill bit accepting cavity is communicated with the drill bit mixing spray nozzle.
反循环钻头设有钻头接受腔和钻头混合喷嘴，花键套与反循环钻头之间开设重吸收间隙，花键套内设有花键套引射喷嘴，花键套引射喷嘴与反循环钻头和花键套之间的排气通道相连通，钻头接受腔与钻头混合喷嘴相连通。
Must be familiar with measuring equipment such as micrometers, verniers, plug gauges, dial bores and various dial indicators. Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.
熟悉测量设备装置，诸如：千分尺、标尺、形测孔规、度钻孔及多样化的千分表。（1）钻孔使用配套冲击电钻.钻孔时，孔洞间距与孔洞深度应满足设计要求。
A Study on the Effect of the Seed-dropping Direction of a Precision Drill on Its Seed Spacing Uniformity
精量播种机排种方向对株距均匀性影响的探讨
Precision Drill core components of precision metering device, which performance directly affects the quality of precision seeding, Seed Spacing uniformity is the most important indicators to measure the performance of fine sowing machine, but also has great application value.
作为精密播种机核心部件的精密排种器，其性能的好坏直接影响着精密播种的质量，而播种粒距均匀性是衡量精播机性能的最重要指标，也具有很大的应用价值。
spacing drill
相关单词辨析
这组词都有“练习、训练、锻炼”的意思，其区别是：
training: 普通用词，泛指为从事某种职业而进行的身体或智力方面的训练。
practice: 指把所学的理论或知识用于实践以获得技艺与技巧。
exercise: 主要指为强壮体魄而进行的锻炼，也可指进行练习以保持已经获得的技巧。
drill: 侧重进行有系统的，严格和重复的练习。
discipline: 既可指训练又可指为达到某种熟练程度而进行的约束。