If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.

如果你不确定如何使用仪器或操作，请向老师寻求帮助。

So was born the echo-sounding apparatus, now in general use in ships.

这样就产生了目前各种船舶上普遍应用的回声探测仪。

Those made by his firm use advanced laser-fluorescence technology: more accurate, simpler, cheaper and more robust, he says, than the gas-chromatography apparatus in common use so far.

这些由他公司制造的机器使用先进的镭射-荧光技术：与至今为止通常使用的气体-色谱法设备相比，他说，这些更精确，更简单，更便宜而且更经用。

Each command within the vast Defense Department apparatus is given a series of two-letter groupings that they can use for their operations’ two-word sobriquets.

每一个由国防部大型作战行动命名设备决定的作战代号名称，都是由两个字母构成一个字母群再使其组成“两个单词构成的系列代号”。

Each command within the vast Defense Department apparatus is given a series of two-letter groupings that they can use for their operations' two-word sobriquets.

每一个由国防部大型作战行动命名设备决定的作战代号名称，都是由两个字母构成一个字母群再使其组成“两个单词构成的系列代号”。

Your membership fee is for use of the apparatus; it's not a maid service.

你支付的会员费是使用健身器械的费用，而不是请保姆打扫的费用。

Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.

呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。

Let me tell you how to use this medical apparatus.

我来教您如何使用这个医疗器械。

This is a 1.5 m long hollow cylinder apparatus, can use the elevator shuttle to hydraulic excavator through food channel.

这是一根长1.5米的空心圆柱状设备，可以利用升降机穿梭于液压挖掘机打通的给养通道。

It is concluded that some attentions must be paid in the design, installation and use of flameproof electrical apparatus.

提出了隔爆型电气设备设计、安装、使用应注意的方面。

Several Apparatus for measurement of coatings thickness and their use were introduced.

介绍了几种检测涂层厚度的仪器及其使用方法。

In building sand, stone and mechanism of the breaking of metallurgical slag is obtained universal use, compared with other types of hammer apparatus production with high efficiency.

在机制建筑砂、石料以及各种冶金矿渣的破碎中更是得到普遍使用，与其它类型的碎石机相比产量功效高。

But in the market alarm apparatus majority of use in some big company fiscal institution.

但是市场上的密码锁大部分都是用于一些大公司财政机构。

Especially, the signal generators in different precision are often used for use and maintenance of seismic apparatus.

特别是地震勘探仪器的使用和维修常常要用到不同精度的信号源。

All apparatus and materials must be returned to their original positions after use.

所有的实验器材必须在用过后归还到原来的位置。

Lucubrate the precautions, common troubles and troubleshooting methods in correct use of electrician type apparatus for calibrating electric energy meter.

详细论述了正确使用电工式电能表检定装置时应注意的问题、常见故障及其排除方法。

Single pass drilling apparatus, use a one-piece drill bit, method and rock bolt for single pass rock bolting.

单通道钻孔装置，整个钻头的使用，用于单通道岩石锚固的方法和岩石锚栓。

Gymnastics, such as somersaults, rolls, and handsprings, performed without the use of specialized apparatus.

翻跟头，空翻不使用特殊器械而进行的体操活动，如筋头、旋转和前手翻腾跃。

Objective: a simple apparatus for volatile oil determination is designed with the use of common glass apparatus in order to refreshen the shortcoming of pharmacopoeia device.

目的：用常用玻璃器具组装一种挥发油含量测定的简易装置，以补充药典含量测定方法的不足。

The soil compaction standard should use the compaction apparatus and construction condition al coefficient method, and the compaction degree method is not recommended.

土的压实标准仍应采用南实处击实仪及施工条件系数法，压实度法不可取；

The linearization apparatus designed by this method is in common use. It can be used in thermocouple and resistance thermometers as well as flowmeters by means of orifice plates.

用该方法设计的线性化器具有一定的通用性，可以构成热电偶、热电阻温度计以及孔板流量计。

As a result, the calibrated reactor could be employed to isothermal operation, adiabatic operation and isothermal-adiabatic operation, which widened the use range of the apparatus.

校正后的反应器可分别进行等温操作、绝热操作以及等温和绝热的混合操作，拓宽了仪器适用范围。

Apparatus based on the use of X-rays, whether or not for medical, surgical, dental or veterinary USES, including radiography or radiotherapy apparatus.

射线的应用设备，不论是否用于医疗、外科、牙科或兽医，包括射线照相或射线治疗设备。

The whole apparatus designed from the practicality. The use will not have any discomfort.

整个仪器的设计从实用性出发，在使用时不会有任何的不适感。

Safe work procedures in the assembly, and general use of apparatus is important.

装配线的安全工作流程和设备的充分利用是非常重要的。