Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

某导柱材料为40钢,外圆面要达到IT6级精度,R a 0.8μm,则加工方案可选( ) 。

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

铰孔是孔加工的一般精加工方法，铰孔精度一般可达到（）级。

I think you should end it ______ it is too late, or you will be sorry for it.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

Never（）the lifeboat or lifecraft disengaging locks or hydrostatic release gears because it can cause them to fail to function.

Never（）the lifeboat or lifecraft disengaging hocks or hydrostatic release gears because it can cause them to fail to function.

国家标准对标准公差规定了（）级，最高级为IT01，最低级为IT18。