活动

pivoted shoe

活动支承块

pivoted shoe thrust bearing 自动调整式推力轴承 | pivoted shoe 活动支承块 | pivoted shoe 活动支承块绕枢轴转动的推力块

pivoted shoe

活动支承块绕枢轴转动的推力块

pivoted shoe 活动支承块 | pivoted shoe 活动支承块绕枢轴转动的推力块 | pivoted towing link 铰接拖曳联杆

propelling pencil

活动铅笔

propelling pencil with plastic barrel 塑料杆活动铅笔 | propelling pencil 活动铅笔 | Propenal 丙烯醛

reactivated structural bed

再活动构造层

反应速度常数 reaction velocity constant | 再活动构造层 reactivated structural bed | 再活动作用 reactivation

spudding action

钻具上下活动

spring pit上升水成坑 | spudding action钻具上下活动 | spudding up and down上下活动钻具

Festivals

节庆活动

我觉得加州人的街会(street stroll)及各样节庆活动(festivals)之多,是他们爱热闹爱户外活动爱自然的具体呈现,如果你来旧金山,千万不要错过. 街会(street stroll),我之所以翻它做「街会」,因为它性质很像我们中国人的庙会,

Daily routines

日常活动

Topic 4 日常活动 (Daily routines)Topic 4 日常活动 (Daily routines)a. 常有学生在课余时间打工.今年寒假,在麦当老(McDonald's)做服务员.

mass?action theory

整体活动论

mass action principle 整体活动原则 | mass action theory 整体活动论 | mass specific development 整体 特殊发展

activity theory of learning

活动学习观

"双主"教学模式:teaching-and-learning centered teaching mode | 活动学习观:Activity theory of learning | 学习活动的设计:Design of Learning Activity

theory of activity

活动理论

theory of achievement 成就需要理论 | theory of activity 活动理论 | theory of activity for learning 学习的活动理论

lucifugal：避光的

luciferin 荧光素 | lucifugal 避光的 | lucimycin 鲁斯霉素 光明霉素

order of approximation：近似等级

金文 bell-cauldron inscription, bronze inscription | 近似等级 order of approximation | 竞争和聚合 compete and converge