金属塑性一般受金属晶粒影响,晶粒大,塑性差。()

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金属塑性一般受金属晶粒影响,晶粒大,塑性差。()

考点:钢材热处理工考试钢材热处理工初级钢材热处理工初级题库
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某会议代表200人左右,分住房时,如果每4人一间多1人,每6人一间少1人,每7人一间多6人,共有代表______人.

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如果工作B、C、H要由一个专业施工队顺序施工,在不改变原施工进度计划总工期和工作工艺关系的前提下,如何安排该三项工作最合理此时该专业施下队的工作间断时间为多少

2.由于建设单位负责的施工现场拆迁工作未能按时完成,总监理工程师口头指令承包单位开工日期推迟4个月,工期相应顺延4个月,鉴于工程未开工,因延期开工给承包单位造成的损失不予补偿。指出总监理工程师做法的不妥之处,并写出相应的正确做法。

3.推迟4个月开工后,当工作G开始之时检查实际进度,发现此前施工进度正常。此时,建设单位要求仍按原竣工日期完成工程,承包单位提出如下赶工方案,得到总监理工程师的同意。

该方案将G、H、L三项工作均分成两个施工段组织流水施工,数据见表5。

G、H、L三项工作流水施工的工期为多少此时工程总工期能否满足原竣工日期的要求为什么

题型:判断题

滚花时因产生很大的挤压变形,因此,必须把工件滚花部分直径车______mm(其中p是节距)。

A.小(0.2~0.5)p

B.大(0.2~0.5)p

C.小(0.08~0.12)p

题型:判断题

"What does the middleman do but add to the price of goods in the shops " Such remarks are aimed at the intermediate operations between manufacturers and final customers. This practice usually attracts a lot of attention from the public and the press and the operation most talked about is what is often called wholesaling.The wholesaler buys goods in large quantities from the manufacturers and sells them in smaller parcels to retailers, and for this service his selling price to the retailer is raised several percent higher. But his job is made more difficult by retail demand not necessarily running level with manufacturers’’ production. Because he adjusts or regulates the flow of goods by holding stock until required, he frees the manufacturer, to some extent, from the effect on production of changing demand and having to bear the whole risk.The manufacturer can then keep up a steady production flow, and the retailer has no need to hold heavy stocks, who can call on the wholesaler for supplies any time. This wholesale function is like that of a valve in a water pipe. The middleman also bears part of the risk that would otherwise fall on the manufacturer and also the retailer.The wholesaler provides a purely commercial service, for which he is too well rewarded. But the point that is missed by many people is that the wholesaler is not just someone adding to the cost of goods. It is true one could eliminate the wholesaler but one would still be left with his function: that of making sure that goods find their way to the people who want them.

The middleman relieves the producer of________.

A.fluctuating market demand and staying at risk

B.the production of commodities for the retail market

C.some extent of production of changing demand

D.storing goods in a warehouse until they are needed

题型:判断题

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