参考例句

1. Dehydration in hydraulic presses is the most general method now in use .

   在水压机中驱水是目前通用的方法。

2. The sige of the package in use determines the frequency of doffing.

   所用卷装的尺寸决定了落纱的次数。

3. Among the many regulatory substances in use we have controllable and selective herbicides.

   在所有的许多调节物质中，有控制性的和选择性的除草剂。

4. One of the most dangerous illegal narcotics in use today is opium.

   目前最危险的违禁麻醉品之一是鸦片。

5. Methods of stocktaking vary according to the kind of stock records in use .

   盘点的方法根据使用的库存纪录的种类不同而异。

6. Today, thousands of systems are in use primarily on economic payoff.

   目前，很多系统的采用主要是为了经济收益。

7. Several different types of valves are in use . Some are back pressure valves.

   有几种不同的阀在使用中，有些是反向压力阀。

8. About half of the world's known supply of copper ore is already in use .

   全世界已知的铜矿储量，大约有一半已在使用了。

9. More modern fluid bed driers are now much in use .

   目前大量应用的是更先进的流化床干燥器。

10. Pug saw vast quantities of Lend-Lease material in use .

    帕格看到了大量的租借物资在发挥作用。

同义词

• busy
• engaged
• in use(p)