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Gas concentrations should be monitored at intervals during the fumigation and, if necessary, additional fumigant added to maintain the required concentration.

熏蒸期间，应在不同时间间隔监测熏蒸剂的浓度，并根据需要补充熏蒸剂，以达到所要求的浓度。

Give you first aid,and send you to hospital,if necessary.

如果需要，他们还会把您送到医院。

Give you first aid, and send you to hospotal,if necessary.

并且给你提供急救，如果有必要的话还会送你到医院。

If necessary, I will go to the hospital.

如果有必要，我就去医院。

If necessary, we will accept 420 stainless steel as Bob Gould has reccomended to us.

如果有必要的话，我们也会接受BOB GOULD建议的，用420不锈钢制造的模具。

Support a variety of graphics file formats libraries, if necessary, you can modify the source code, generate their own libraries.

一个支持多种图形文件格式的函数库，如果需要，你可以修改源代码，生成自己的函数库。

A question about a deficiency in hafnium thus far did not arise, and its output if necessary can be increased.

一个问题一个缺乏铪迄今没有出现，它的输出如果有必要可以增加。

Our team - experts in managing match time, when they want rhythm they plug in the turbo and if necessary they use the hand brake – put the match on ice.

我们的球队——控制比赛的大师，当我们想控制节奏的时候，我们会插上电源或者踩住刹车，将比赛的节奏放缓。

Inspect your body thoroughly — use a hand mirror if necessary.

全面检查你的身体–如果必要，使用手持的镜子。

Usually, one to two turns beyond hand-tight using a suitable strap-wrench, if necessary, is sufficient.

通常，如果必要的话，采用适当的带式扳手，但感到手紧时，再继续旋转一到两圈就足够了。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。