The major task of a pitcher is to pitching,and it is a obligatory charge for her to play deep after the pitching.
垒球投手是一个队中的核心人物,她所处的位置和担负的任务,具有独立作战和协同作战的特点,把球投好是投手首要完成的重要任务,而投球后的防守则是投手义不容辞的责任。
Meanwhile,phase-controlled water injection,weak at point and strong on plane,ball injection profile control,process optimization and cyclic water stimulation are performed in the oilfield in accordance with the chara.
针对枣园油田存在的油藏流度低、构造复杂、工艺适应性差等问题,在该油田开展强水淹层孔隙结构参数的理论研究,对注水前后的孔喉结构的变化情况进行了分析,同时根据储层非均质性强的特点现场实施了相控注水、点弱面强、投球调剖、工艺优化和注水吞吐等技术,实现该油田减缓自然递减和增加可采储量的双重目的,使该油田综合开发水平由三类上升到一类。
With the MCS 51 Single Macrochip as the controlling centre,together with the temperature measuring electronic circuit,the rotavy and pushing ball casting system realizes the intelligentlized ball casting,and can automatically change its intermitence time according to the channels temperature.
首创以 MCS-5 1单片机为控制核心 ,外加测温电路 ,使拨轮扶推式投球机能够依据管道温度 ,自动改变投球间隔时间 ,实现自动投球 ,又可根据需要手动投球 ,具有一定的可靠性、实用
Equiped with AT89C2051 SCM as the key component and some integrated circuits,besides the manual performance of pig launching,the pig launcher can also change the launching interval according to the pipeline temperature.
用AT8 9C2 0 5 1单片机作控制核心 ,接口部分采用少量集成电路 ,使投球机除具有手动投球功能外 ,又能依据管道温度 ,自动改变投球间隔时间 ,具有一定的智能性、可靠性和实用
Utilizing bowling on the board with nails and its generalization,this paper designs two kinds of combination-tests on uniform pseudorandom numbers,and proves that Poker-test is its inference.
讨论了钉板投球及其推广模型 ,利用它设计出 2种均匀伪随机数组合性检验法 ,证明Poker检验是其特例 。