1)  Manual operation
手工采样
2)  manual
手工
1.
It was pointed out that,in order to guarantee the quality of manually made lost foam patterns,attentions should be paid to:(a)Density of the foam board should be more than 16 g / dm3;(b)Surface defects of lost foam patterns should be remedied in proper time.
详细介绍了消失模的手工加工成型方法和粘结剂的选用方法。
3)  handwork
手工
1.
Electronic handwork skill training is very important and necessary for electronic information majors in higher vocational and technical college.
电子手工技能培训对于高职电子信息专业来说,是十分重要和必要的。
4)  handcraft
手工
5)  manual welding
手工焊
1.
Two kinds of welding methods:strength low-matched with automatic welding and strength over-matched with manual welding,were applied to the ultra-fine micro-alloy steel without pre-& post-heating treatment.
对超细组织微合金结构钢在不进行焊前焊后热处理的条件下,分别采用低强匹配自动焊和高强匹配常规手工焊方法进行焊接试验。
2.
According to the introduction of the manufacture process feature of flux-cored wires and the good performances exhibited by the deposit metal,the current questions on the popularization and application of flux-cored wires were analyzed,as well as the applied methods of flux-cored wires for manual welding.
通过对药芯焊丝制造工艺特点及其熔敷金属所表现出的良好性能的介绍,分析了当前药芯焊丝推广应用所遇到的问题,提出了将药芯焊丝用于手工焊接的方法,并指出了推广应用的几个关键问题。
6)  manual demoulding
手工脱模
1.
three kinds of injection mold structure of manual demoulding, automatic thread demoulding and slide demoulding were designed.
分析了带有全内螺纹结构的硬质塑料零件的特点,设计了手工脱模、螺纹自动旋转脱模、滑块脱模的3种模具结构。
参考词条
补充资料:被动式大气采样器
分子式:
CAS号:

性质:无需动力,通过气体扩散采集气体污染物的一种采样装置。该采样品是根据气体扩散原理和选择吸收的特点设计而成的。其结构由三部分构成(见图示)。A:上盖。上面放置浸渍采样膜。B:圆环。为气体扩散通道;C:带孔下盖。放不锈钢网和聚四氟乙烯微孔滤膜。整个采样器可放入筒状套匣,作为贮备容器。适用于各种场所的空气监测之用;尤其在无动力供给的边远、山岭地区更为适用。采样周期可长达1~2个月。所得污染物为在采样时间区段内空气中的平均浓度。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。