The hardest work was assigned to the strongest laborers.

繁重分配给强壮。

Laborers were trained to handle 50-ton compactors and giant cranes.

人们接受操五十吨压土机和巨型起重机训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名人在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

动对象是实践客体子系统,动者是实践主体子系统,动具是实践中介子系统,生产力是实践系统整体功能。

The hardest work was assigned to the strongest laborers.

繁重的作分配给强壮的劳。

Laborers were trained to handle 50-ton compactors and giant cranes.

们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中，一名在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

劳动对象是实践客体子系统,劳动者是实践主体子系统,劳动具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的作分配给强壮的劳。

Laborers were trained to handle 50-ton compactors and giant cranes.

人们接受操作五十吨和巨型起重的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名人在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

劳动对象是实践客体子系统,劳动者是实践主体子系统,劳动具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的工作分配给强壮的工。

Laborers were trained to handle 50-ton compactors and giant cranes.

工人们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名工人在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

动对象是实践客系统,动者是实践系统,动工具是实践中介系统,生产力是实践系统的整功能。

The hardest work was assigned to the strongest laborers.

繁重的工作分配给强壮的劳工。

Laborers were trained to handle 50-ton compactors and giant cranes.

工人们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名工人在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

劳是实践客体子系统,劳者是实践主体子系统,劳工具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的作分配给强壮的。

Laborers were trained to handle 50-ton compactors and giant cranes.

人们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名人在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

对象是实践客体子系统,者是实践主体子系统,具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的工作分配给强壮的工。

Laborers were trained to handle 50-ton compactors and giant cranes.

工们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名工在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

对象是实践客体子系统,是实践主体子系统,工具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的作分配给强壮的。

Laborers were trained to handle 50-ton compactors and giant cranes.

们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中国长治，一名在煤渣垃圾场酣。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

对象是实践客体子系统,者是实践主体子系统,具是实践中介子系统,生产力是实践系统的整体功能。

The hardest work was assigned to the strongest laborers.

繁重的作分配给强壮的劳。

Laborers were trained to handle 50-ton compactors and giant cranes.

们接受操作五十吨压土机和巨型起重机的训练。

A laborer takes a rest on a cinder dumpsite in Changzhi, China.

在中，一名在煤渣垃圾场酣睡。

Subject of labor is practice object subsystem, laborer is subsystem of practice main body, labor tool is practice neutretto system, productivity is the integral function that carries out a system.

劳动对象是实践客体子系统,劳动者是实践主体子系统,劳动具是实践中介子系统,生产力是实践系统的整体功能。