combine harvester

简明释义

联合收割机

英英释义

例句

1.The new model of the combine harvester has advanced technology for better fuel efficiency.

新款联合收割机采用了先进技术，提高了燃油效率。

2.The farmer used a combine harvester to efficiently gather the wheat from the fields.

农民使用联合收割机高效地收集田地里的小麦。

3.During harvest season, many local farms rent a combine harvester to speed up the process.

在收获季节，许多当地农场租用联合收割机以加快进程。

4.A combine harvester can harvest several types of crops in one pass, saving time and labor.

一台联合收割机可以在一次作业中收割多种作物，从而节省时间和劳动力。

5.Farmers often attend workshops to learn how to operate a combine harvester safely.

农民们经常参加研讨会，以学习如何安全操作联合收割机。

作文

The agricultural revolution has brought about various advancements in farming techniques, and one of the most significant inventions is the combine harvester. A combine harvester is a versatile machine that combines three essential operations: reaping, threshing, and winnowing. This innovation has transformed the way farmers operate, increasing efficiency and productivity in the field. Before the invention of the combine harvester, harvesting crops was a labor-intensive process that required numerous workers and considerable time. Farmers had to manually cut the grain with sickles, then separate the edible part from the chaff. This process was not only time-consuming but also physically demanding. With the advent of the combine harvester, these tasks could be completed much faster and with less effort.The combine harvester works by cutting the crop at the base, then feeding it into the machine where the grains are separated from the stalks. The design of the combine harvester allows it to efficiently gather large quantities of crops in a single pass, significantly reducing the number of trips needed to collect the harvest. This efficiency is particularly important during harvest season when time is of the essence, as crops must be harvested before they spoil or are damaged by adverse weather conditions.In addition to its efficiency, the combine harvester also plays a crucial role in improving crop yields. By minimizing the loss of grain during the harvesting process, farmers can ensure that they are maximizing their output. This is especially important for staple crops such as wheat, corn, and rice, which are vital for food security worldwide. The ability to harvest crops quickly and effectively allows farmers to take advantage of better market prices and reduces the risk of losses due to weather changes.Furthermore, the use of a combine harvester has economic implications as well. By reducing labor costs and increasing productivity, farmers can improve their profit margins. This is particularly beneficial for small-scale farmers who may struggle to compete with larger agricultural operations. The accessibility of combine harvesters has enabled more farmers to adopt modern farming practices, contributing to overall agricultural development.However, the widespread use of combine harvesters also raises some concerns. The initial investment for such machinery can be high, making it difficult for some farmers to afford. Additionally, the reliance on mechanization can lead to a decrease in rural employment opportunities, as fewer workers are needed for harvesting tasks. This shift can have social implications, particularly in regions where agriculture is a primary source of income.In conclusion, the combine harvester is a remarkable innovation that has revolutionized the agricultural industry. It has improved efficiency, increased crop yields, and altered the economic landscape for farmers. Despite its challenges, the benefits of the combine harvester far outweigh the drawbacks, making it an essential tool in modern agriculture. As technology continues to evolve, we can expect further advancements that will enhance the capabilities of the combine harvester and contribute to sustainable farming practices in the future.

农业革命带来了各种农业技术的进步，其中最重要的发明之一就是联合收割机。联合收割机是一种多功能机器，结合了三项基本操作：收割、脱粒和扬谷。这一创新改变了农民的作业方式，提高了田间的效率和生产力。在联合收割机发明之前，收割庄稼是一个劳动密集的过程，需要大量工人和相当长的时间。农民必须用镰刀手动割麦，然后将可食用部分与秸秆分开。这个过程不仅耗时，而且体力要求高。随着联合收割机的出现，这些任务可以更快、更轻松地完成。联合收割机通过在基部切割作物，然后将其送入机器，使谷物与秸秆分离。联合收割机的设计使其能够在一次通过中高效地收集大量作物，显著减少了收获所需的行程次数。这种效率在收获季节尤为重要，因为必须在作物腐烂或受到恶劣天气影响之前进行收割。除了效率外，联合收割机在提高作物产量方面也发挥着至关重要的作用。通过减少收获过程中谷物的损失，农民可以确保最大化他们的产出。这对于小麦、玉米和大米等主食作物尤其重要，这些作物对全球粮食安全至关重要。快速有效地收割作物的能力使农民能够利用更好的市场价格，并降低因天气变化造成的损失风险。此外，使用联合收割机还具有经济意义。通过降低人工成本和提高生产率，农民可以改善利润率。这对小规模农民尤其有利，因为他们可能难以与大型农业企业竞争。联合收割机的可及性使更多农民能够采用现代农业实践，从而促进整体农业发展。然而，联合收割机的广泛使用也引发了一些担忧。这种机器的初始投资可能很高，使一些农民难以负担。此外，对机械化的依赖可能导致农村就业机会的减少，因为收割工作所需的工人更少。这一变化可能会产生社会影响，特别是在农业是主要收入来源的地区。总之，联合收割机是一项了不起的创新，彻底改变了农业行业。它提高了效率，增加了作物产量，并改变了农民的经济格局。尽管存在挑战，但联合收割机的好处远远超过了缺点，使其成为现代农业中不可或缺的工具。随着技术的不断发展，我们可以期待未来进一步增强联合收割机能力的进步，并促进可持续农业实践。