查询词典 acme thread

When the K55 grade oil casing lathed thread,the thread flawed.

K55钢级石油套管在车丝的过程中，出现断扣问题。

The reason is because what you had marshaled to another thread, is only an interface proxy, the real work is still done by the STA object which is CoCreateInstance'd in the main thread.

原因是因为你已经封送到另一个线程，只有一个接口的代理，真正的工作仍然是由STA的对象是在主线程CoCreateInstance'd完成。

This is alright because the marshalled object is always executed in the thread where it is CoCreateInstance'd, so its unexposed member COM objects would always be executed in that thread.

这是不要紧，因为编组对象始终执行的线程在有CoCreateInstance'd，因此它的成员未暴露COM对象总是在该线程执行。

In the latter case,the lower priority thread is preempted by the thread of higher priority,which gets a chance to run instead.

在后一种情况下，底优先级的线程被高优先级的线程抢占，高优先级的线程获得运行的机会。

Each person is allotted a set span of years, a single thread of existence that is snipped with each passing year, the thread growing shorter and shorter.

每个人分配固定年龄的生命，一个单独的存在的县换句话说每过去年都减短一点，那线变短和脆弱。

When complete a deep and ultra-deep well casing program, especially a gas well, strength design, thread sealing design and anticorrosion design are needed to introduce. Meanwhile, many factors including external loadings, casing strength models selection, plastic rock creep stress, intermediate casing wear, temperature effect, thread air tight ability are necessarily considered.

认为对于深井超深井套管，尤其是气井必须引入强度设计、密封设计、防腐蚀设计，需要从外载的计算、强度模型的选择、塑性岩石蠕动引起的载荷、技术套管磨损、温度效应、螺纹的密封性以及套管本身强度的选择等方面进行研究。

On the base of keeping the same law of motion of original thread-taking-up pole of computerized embroidery machine and relevant sizes,the disc cam with pushing bar of roller of linear motion along the axis with the spring force closure is used to design a new thread-taking-up mechanism .

以电脑刺绣机为研究对象，根据刺绣机的面线消耗量和刺绣的可缝性，分析了挑线机构的设计要求；利用五次多项式曲线对挑线凸轮进行了设计；并根据刺绣机的特殊要求，提出了刺绣机最优化设计方法。

On the base of keeping the same law of motion of original thread-taking-up pole of computerized embroidery machine and relevant sizes,the disc cam with pushing bar of roller of linear motion along the axis with the spring force closure is used to design a new thread-taking-up mechanism .

保持原有电脑刺绣机挑线杆运动规律和相关尺寸不变，采用对心直动滚子推杆盘形凸轮机构，辅以弹簧力进行锁合，对原挑线机构进行了创新设计

The results show that using double insurance processthe hardness of thread area of bevel driving pinion can fully meet the need of technology requirement of the product with stable qualitybut its production costs is higherand that using induction annealingthe hardness of thread area can also meet the require...

结果表明：采用双重保险工艺处理的主动圆锥齿轮尾部螺纹硬度完全可以达到产品技术要求，质量稳定可靠，但成本较高；采用感应退火工艺，尾部螺纹硬度可以达到技术要求，其特点是节能、生产效率高，但需要定期对尾部螺纹进行力学性能检测。

5A kind of stress-relief groove of box thread joint has been developped. Finite Element models of several thread joints have been established by ABAQUS. The Morrow Strain-life Model is used to evaluate the fatigue life of 3 kinds of connections with different stress-relieaf grooves of box. The results show that the fatigue life of box with stress-relief groove developed in the paper is the longest.

为了定量评价几种螺纹接头的疲劳寿命大小，采用Morrow应变周期模型结合有限元分析结果计算3种具有内螺纹应力减轻槽母扣的疲劳寿命，计算结果表明本文设计的内螺纹应力减轻槽能显著延长母扣的疲劳寿命。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。